Sepam Series 80 Installation, use, commissioning and maintenance

Transcription

1 Electrical network protection Operation manual 2003 Sepam Series 80 Installation, use, commissioning and maintenance

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3 General contents Installation 1 Use 2 Commissioning 3 Maintenance 4 1

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5 Installation Contents Equipment identification 4 Precautions 6 Base unit 7 Dimensions 7 Mounting 8 Connection 9 Phase current inputs connection 10 Residual current inputs connection 11 Phase voltage and residual voltage inputs connection 12 MES input / 6 output module 14 1 A / 5 A current transformers 16 LPCT type current sensors 18 CLP1 sensors 18 Test accessories 19 CSH120 and CSH200 Core balance CTs 20 CSH30 Interposing ring CT 21 ACE990 Core balance CT interface 22 Remote modules 24 MET148-2 Temperature sensor modules 25 MSA141 Analog output module 26 DSM303 Remote advanced UMI module 27 Communication accessories 28 Communication protocols and gateways 29 Communication interfaces 30 ACE wire RS 485 network interface 31 ACE959 4-wire RS 485 network interface 32 ACE937 Fiber optic interface 33 ACE909-2 RS 232 / RS 485 converter 34 ACE919CA and ACE919CC RS 485 / RS 485 converters

6 Installation Equipment identification 1 Identification Each Sepam is delivered in a separate package containing: b 1 Sepam series 80 base unit, with its memory cartridge and two connectors A and E tightened b 1 battery b 8 spring clips b 1 terminal block identification label b 1 Quick Start The other optional accessories such as modules, current input connectors and cords are delivered in separate packages. To identify a Sepam, inspect the 3 labels which are visible when the door on the front panel is opened: b label with base unit hardware reference, stuck on the back of the door on the front panel DE50763 b 2 labels stuck on the cartridge: DE50722 DE50723 Cartridge hardware reference. Reference of software loaded in the cartridge: b application b working language. Identification of accessories The accessories such as optional modules, current or voltage connectors and connection cords come in separate packages, identified by labels. b example of MSA141 module identification label: DE

7 Installation Equipment identification List of Sepam series 80 references Reference Designation DSM303, remote advanced UMI module CCA630 connector for 1A/5A CT current sensors CSH30 interposing ring CT for I0 input CSH120 residual current sensor, diameter 120 mm CSH200 residual current sensor, diameter 200 mm MET temperature sensor module ACE949-2-wire RS 485 network interface ACE959 4-wire RS 485 network interface ACE937 fiber optic interface MSA141 1 analog output module ACE909-2 RS 485/RS 232 convertor ACE919 AC RS 485/RS 485 interface (AC power supply) ACE919 DC RS 485/RS 485 interface (DC power supply) CCA770 remote module cord, L = 0.6 m CCA772 remote module cord, L = 2 m CCA774 remote module cord, L = 4 m CCA612 RS 485 network interface communication cord, L = 3 m CCA783 PC connection cord CCA613 remote LPCT test plug ACE917 LPCT injection adapter CCA pin screw type connector CCA pin ring lug connector SFT2841 PC configuration software kit, with CCA783 cord ACE990 core balance CT interface for I0 input Kit 2640 with 2 sets of spare connectors for MES ATM820 shield CCA671 connector for LPCT current sensors SEP080, base unit without UMI, V DC power supply SEP383, base unit with advanced UMI, V DC power supply AMT880 mounting plate MMS020 memory cartridge Working language English/French Working language English/Spanish MES input + 6 output module / V DC Substation application type S Substation application type S Substation application type S Transformer application type T Transformer application type T Transformer application type T Motor application type M Motor application type M Motor application type M Generator application type G Generator application type G Generator application type G88 5

8 Installation Precautions 1 Installation of Sepam We recommend that you follow the instructions given in this document for quick, correct installation of your Sepam: b equipment identification b assembly b connection of current and voltage inputs, probes b connection of power supply b checking prior to commissioning. MT11149 Environment of the installed Sepam Operation in a damp environment The temperature/relative humidity factors must compatible with the unit s environmental withstand characteristics. If the use conditions are outside the normal zone, commissioning arrangements should be made, such as air conditioning of the premises. Handling, transport and storage Sepam in its original packaging Transport: Sepam may be shipped to any destination without talking any additional precautions by all usual means of transport. Handling: Sepam may be handled without any particular care and can even withstand being dropped by a person handling it (person standing on floor). Storage: Sepam may be stored in its original packaging, in an appropriate location for several years: b temperature between -25 C and +70 C b humidity y 90 %. Periodic, yearly checking of the environment and the packaging condition is recommended. Once Sepam has been unpacked, it should be energized as soon as possible. Sepam installed in a cubicle Transport: Sepam may be transported by all usual means of transport in the customary conditions used for cubicles. Storage conditions should be taken into consideration for a long period of transport. Handling: Should the Sepam fall out of a cubicle, check its condition by visual inspection and energizing. Storage: Keep the cubicle protection packing for as long as possible. Sepam, like all electronic units, should not be stored in a damp environment for more than a month. Sepam should be energized as quickly as possible. If this is not possible, the cubicle reheating system should be activated. Operation in a polluted atmosphere Sepam is designed to be used in a clean industrial environment as defined by IEC class 1. A contaminated industrial atmosphere components (such as the presence of chlorine, hydrofluoric acid, sulfur, solvents...) may cause corrosion of the electronic components, in which case environmental control arrangements should be made (such as closed, pressurized premises with filtered air,...) for commissioning. 6

9 Installation Base unit Dimensions DE50060 DE50577 Dimensions 1 Front view of Sepam. Side view of Sepam with MES120, flush-mounted in front panel with spring clips. Support frame: 1.5 mm to 6 mm thick. Clearance for Sepam assembly and wiring. DE50079 DE50080 Cut-out. Top view of Sepam with MES120, flush-mounted in front panel with spring clips. Support frame: 1.5 mm to 6 mm thick. Assembly with AMT880 mounting plate DE50081 DE50082 Top view of Sepam with MES120, flush-mounted in front panel with spring clips. Mounting plate: 3 mm thick. AMT880 mounting plate. 7

10 Installation Base unit Mounting 1 Spring clip mounting direction The direction in which the spring clips are mounted depends on the thickness of the mounting frame. The top clips are mounted in the opposite direction to the bottom clips. Base unit flush-mounting Sepam series 80 is mounted on the mounting frame by 8 spring clips. The mounting surface must be flat and stiff to guarantee tightness. DE50725 DE x 1 CLIC! 3 5 4x 2 CLAC! 5 4 4x 1 4x 2 DE CLIC! 1 Fixing points. 2 Spring clips. 3 Setting. 4 Positioning. 5 Locking. 6 Unlocking. PE50110 Installing the terminal block identification label A sticker showing the rear panel of Sepam and terminal assignments is supplied with each base unit to facilitate the installation and connection of Sepam and the MES120 input/output modules. You may stick it in the location of your choice, e.g. on the side of an MES120 module or on the right-hand side panel of Sepam. Installing the battery Install the battery supplied in its housing, in accordance with the polarities indicated. 8

11 Installation Base unit Connection DE For safety reasons (access to dangerous voltages), all terminals must be screw-tightened, whether or not they are used. Connector Type Reference Wiring A, E Screw type CCA620 b wiring with no fittings : v 1 wire with max. cross-section 0.2 to 2.5 mm² (u AWG 24-12) or 2 wires with max. cross-section 0.2 to 1 mm² (u AWG 24-16) v stripped length: 8 to 10 mm b wiring with fittings: v recommended Telemecanique wiring with fittings: - DZ5CE015D for 1 x 1.5 mm² wire - DZ5CE025D for 1 x 2.5 mm² wire - AZ5DE010D for 2 x 1 mm² wires v tube length: 8.2 mm v stripped length: 8 mm 6.35 mm ring lugs CCA622 b 6.35 mm ring or spade lugs (1/4") b maximum wire cross-section of 0.2 to 2.5 mm² (u AWG 24-12) b stripped length: 6 mm b use an appropriate tool to crimp the lugs on the wires b maximum of 2 ring or spade lugs per terminal b tightening torque: 0.7 to 1 Nm B1, B2 4 mm ring lugs CCA630, for connection of 1 A 1.5 to 6 mm² (AWG 16-10) or 5 A CTs RJ45 plug CCA671, for connection of 3 LPCT sensors Integrated with LPCT CLP1 sensor C1, C2 Green RJ45 plug CCA612 D1, D2 Black RJ45 plug CCA770: L = 0.6 m CCA772: L = 2 m CCA774: L = 4 m Functional earth Ring lug Earthing braid, to be connected to cubicle grounding: b flat copper braid with cross-section u 9 mm² b maximum length: 300 mm 9

12 Installation Base unit Phase current inputs connection 1 DE50043 Variant 1: phase current measurement by 3 x 1 A or 5 A CTs (standard connection) Connection of 3 x 1 A or 5 A sensors to the CCA630 connector. The measurement of the 3 phase currents allows the calculation of residual current. Variant 2: phase current measurement by 2 x 1 A or 5 A CTs Connection of 2 x 1 A or 5 A sensors to the CCA630 connector. DE50044 Measurement of phase 1 and 3 currents is sufficient for all protection functions based on phase current. This arrangement does not allow the calculation of residual current. Variant 3: phase current measurement by 3 LPCT type sensors DE50045 Connection of 3 Low Power Current Transducer (LPCT) type sensors to the CCA671 connector. It is necessary to connect 3 sensors; if only one or two sensors are connected, Sepam goes into fail-safe position. Measurement of the 3 phase currents allows the calculation of residual current. The In parameter, primary rated current measured by an LPCT, is to be chosen from the following values, in Amps: 25, 50, 100, 125, 133, 200, 250, 320, 400, 500, 630, 666, 1000, 1600, 2000, Parameter to be set using the SFT2841 software tool, to be completed by hardware setting of the microswitches on the CCA671 connector. Possible combinations of types of sensors per application b Sepam units without ANSI 87T or 87M differential protection functions measure 2 or 3 phase currents by means of sensors connected to connector B1 b Sepam M87 and G87 units with ANSI 87M machine differential protection measure 2 x 3 phase currents: v 3 CTs or 3 LPCTs at the circuit breaker end connected to connector B1 v 3 CTs or 3 LPCTs connected to connector B2 b Sepam T87, M88 and G88 units with ANSI 87T transformer differential protection measure 2 x 3 phase currents by means of 2 sets of 3 current transformers: v 3 CTs at the circuit breaker end connected to connector B1 v 3 CTs connected to connector B2. Sensors connected to Connector B1 Connector B2 Sepam without ANSI 87M or 87T 2 CTs or 3 CTs connected to CCA630 or 3 LPCTs to CCA671 Sepam with ANSI 87M 3 CTs connected to CCA630 or 3 LPCTs to CCA671 3 CTs connected to CCA630 or 3 LPCTs to CCA671 Sepam with ANSI 87T 3 CT connected to CCA630 3 CTs connected to CCA630 10

13 Installation Base unit Residual current inputs connection Variant 1: residual current calculation by sum of 3 phase currents Residual current is calculated by the vector sum of the 3 phase currents I1, I2 and I3, measured by 3 x 1 A or 5 A CTs or by 3 LPCT type sensors. See current input connection diagrams. 1 Variant 2: residual current measurement by CSH120 or CSH200 core balance CT (standard connection) DE50578 Arrangement recommended for the protection of isolated or compensated neutral systems, in which very low fault currents need to be detected. Setting range from 0.01 In0 to 15 In0 (minimum 0.1 A), with In0 = 2 A or 20 A according to parameter setting. Variant 3: residual current measurement by 1 A or 5 A CTs and CSH30 interposing ring CT DE50584 The CSH30 interposing ring CT is used to connect 1 A or 5 A CTs to Sepam to measure residual current: b CSH30 interposing ring CT connected to 1 A CT: make 2 turns through CSH primary b CSH30 interposing ring CT connected to 5 A CT: make 4 turns through CSH primary. Setting range from 0.01 In to 15 In (minimum 0.1 A), with In = CT primary current. DE50585 Variant 4: residual current measurement by core balance CT with ratio of 1/n (n between 50 and 1500) DE50581 The ACE990 is used as an interface between a MV core balance CT with a ratio of 1/n (50 y n y 1500) and the Sepam residual current input. This arrangement allows the continued use of existing core balance CTs on the installation. Setting range from 0.01 In0 to 15 In0 (minimum 0.1 A), with In0 = k.n, where n = number of core balance CT turns and k = factor to be determined according to ACE990 wiring and setting range used by Sepam, with a choice of 20 discrete values from to

14 Installation Base unit Phase voltage and residual voltage inputs connection 1 Phase voltage input connection variants Variant 1: measurement of 3 phase-to-neutral voltages (3 V, standard connection) Variant 2: measurement of 2 phase-to-phase voltages (2 U) DE50046 DE50047 Measurement of the 3 phase-to-neutral voltages allows the calculation of residual voltage, V0Σ. This variant does not allow the calculation of residual voltage. Variant 3: measurement of 1 phase-to-phase voltage (1 U) Variant 4: measurement of 1 phase-to-neutral voltage (1 V) DE50048 DE50049 This variant does not allow the calculation of residual voltage. This variant does not allow the calculation of residual voltage. Residual voltage input connection variants Variant 5: measurement of residual voltage V0 Variant 6: measurement of residual voltage Vnt in generator neutral point DE50050 DE

15 Installation Base unit Phase voltage and residual voltage inputs connection The availability of certain protection and metering functions depend on the phase and residual voltages measured by Sepam. The table below gives the voltage input connection variants for which each protection and metering function dependent on measured voltages is available. Example: The directional overcurrent protection function (ANSI 67N/67NC) uses residual voltage V0 as a polarization value. It is therefore operational in the following cases: b measurement of the 3 phase-to-neutral voltages and calculation of V0Σ (3 V + V0Σ, variant 1) b measurement of residual voltage V0 (variant 5). The protection and metering functions which do not appear in the table below are available regardless of the voltages measured. 1 Phase voltages measured (connection variant) Residual voltage measured (connection variant) 3 V + V0Σ (var. 1) V0 Vnt (v. 5) (v. 6) 2 U (var. 2) V0 Vnt (v. 5) (v. 6) 1 U (var. 3) V0 Vnt (v. 5) (v. 6) Protection functions dependent on voltages measured Directional phase overcurrent 67 b b b b b b Directional earth fault 67N/67NC b b b b b b Directional active overpower 32P b b b b b b Directional reactive active overpower 32Q b b b b b b Directional active underpower 37P b b b b b b Field loss (underimpedance) 40 b b b b b b Pole slip 78PS b b b b b b Voltage-restrained overcurrent 50V/51V b b b b b b Underimpedance 21B b b b b b b Inadvertent energization 50/27 b b b b b b Third harmonic undervoltage / 100 % stator earth fault 27TN/64G2 64G b b 1 V (var. 4) V0 Vnt (v. 5) (v. 6) Overfluxing (V/Hz) 24 b b b b b b b b b b b b Positive sequence undervoltage 27D b b b b b b Remanent undervoltage 27R b b b b b b b b b b b b Undervoltage (L-L or L-N) 27 b b b b b b b b b b b b Overvoltage (L-L or L-N) 59 b b b b b b b b b b b b Neutral voltage displacement 59N b b b b b b b b b Negative sequence overvoltage 47 b b b b b b Overfrequency 81H b b b b b b b b b b b b Underfrequency 81L b b b b b b b b b b b b Measurements dependent on voltages measured Phase-to-phase voltage U21, U32, U13 b b b b b b U21 U21 U21 Phase-to-neutral voltage V1, V2, V3 b b b b V1 V1 V1 Residual voltage V0 b b b b b b Neutral point voltage Vnt b b b b Third harmonic neutral point voltage b b b b Third harmonic residual voltage b b b b b b Positive sequence voltage Vd / b b b b b b negative sequence voltage Vi Frequency b b b b b b b b b b b b Active / reactive / apparent power: P, Q, S b b b b b b b b b Peak demand power PM, QM b b b b b b b b b Active / reactive / apparent power per phase : P1/P2/P3, Q1/Q2/Q3, S1/S2/S3 b (1) b (1) b (1) b (1) P1/ Q1/S1 Power factor b b b b b b b b b Calculated active and reactive energy (±Wh, ±VARh) b b b b b b b b b Total harmonic distortion, voltage Uthd b b b b b b b b b b b b (1) Only if 3 CTs are connected. P1/ Q1/S1 P1/ Q1/S1 13

16 Installation MES input / 6 output module 1 PE50020 Function The 5 output relays included on the Sepam series 80 base unit may be extended by adding 1, 2 or 3 MES120 modules with 14 DC logic inputs (24 V DC to 250 V DC) and 6 outputs relays, 1 control relay output and 5 indication relay outputs. Characteristics MES120 module Weight 0.38 kg Operating temperature -25 C to +70 C Environmental characteristics Same characteristics as Sepam base units Logic inputs Voltage V DC -20 / +10 % (19.2 to 275 V DC) Typical consumption 3 ma Typical switching threshold 14 V DC Control relay output Voltage DC 24/48 V DC 127 V DC 220 V DC MES input / 6 output module. AC (47.5 to 63 Hz) Continuous current 8 A 8 A 8 A 8 A Breaking capacity Resistive load 8 / 4 A 0.7 A 0.3 A 8 A Load 6 / 2 A 0.5 A 0.2 A L/R < 20 ms Load 4 / 1 A 0.2 A 0.1 A L/R < 40 ms Load p.f. > A Making capacity < 15 A for 200 ms Indication relay output Voltage DC 24/48 V DC 127 V DC 220 V DC AC (47.5 to 63 Hz) Continuous current 2 A 2 A 2 A 2 A Breaking capacity Load L/R < 20 ms 2 / 1 A 0.5 A 0.15 A Load 1 A p.f. > to 240 V AC 100 to 240 V AC DE50101 Description 3 removable, lockable screw-type connectors pin connector for 9 logic inputs: b Ix01 to Ix04: 4 independent logic inputs b Ix05 to Ix09: 5 common point logic inputs. 2 7-pin connector for 5 common point logic inputs Ix10 à Ix pin connector for 6 relay outputs: b Ox01: 1 control relay output b Ox02 to Ox06 : 5 indication relay outputs. Addressing of MES120 module inputs / outputs: b x = 1 for the module connected to H1 b x = 2 for the module connected to H2 b x = 3 for the module connected to H3. 14

17 Installation MES input / 6 output module PE50026 Assembly Installation of an MES120 module on the base unit b insert the 2 pins on the MES module into the slots 1 on the base unit b flatten the module up against the base unit to plug it into the connector H2 b partially tighten the two mounting screws 2 before locking them. MES120 modules must be mounted in the following order: b if only one module is required, connect it to connector H1 b if 2 modules are required, connect them to connectors H1 and H2 b if 3 modules are required (maximum configuration), the 3 connectors H1, H2 and H3 are used. 1 Installation of the second MES120 module, connected to base unit connector H2. DE50105 Connection For safety reasons (access to dangerous voltages), all terminals must be screwed tight, whether or not they are used. The inputs are potential-free and the DC power supply source is external. Wiring of connectors b wiring without fitting: v 1 wire with maximum cross-section 0.2 to 2.5 mm² (u AWG 24-12) or 2 wires with maximum cross-section 0.2 to 1 mm² (u AWG 24-16) v stripped length: 8 to 10 mm b wiring with fittings: v recommended wiring with Telemecanique fitting: - DZ5CE015D for one 1.5 mm² wire - DZ5CE025D for one 2.5 mm² wire - AZ5DE010D for two 1 mm² wires v tube length: 8.2 mm v stripped length: 8 mm. 15

18 Installation 1 A / 5 A current transformers N N Function Sepam may be connected to any standard 1 A or 5 A current transformer. Schneider Electric offers a range of current transformers to measure primary currents from 50 A to 2500 A. Consult us for more information. Sizing of current transformers Current transformers are sized so as not to be saturated by the current values they are required to measure accurately (minimum 5 In). ARJA1. ARJP3. For overcurrent protection functions b with DT tripping curve: the saturation current must be 1.5 times greater than the setting b with IDMT tripping curve: the saturation current must be 1.5 times greater than the highest working value on the curve. Practical solution when there is no information on the settings Rated secondary current (in) Accuracy burden Accuracy class CT secondary resistance R CT Wiring resistance R f 1 A 2.5 VA 5P 20 < 3 Ω < Ω 5 A 7.5 VA 5P 20 < 0.2 Ω < Ω For earth fault protection functions Current transformers must be either: b type 5P20, with an accuracy burden VA CT > R f.in² b or defined by a knee-point voltage Vk u (R CT + R f ).20.in. Current transformers for the transformer differential and restricted earth fault protection functions must also fulfil the conditions below. Transformer and transformer-machine unit differential protection (ANSI 87T) The phase current transformer primary currents must comply with the following rule: 0,1. S y In y 2,5. S for winding 1 3Un1 3Un1 0,1. S y I'n y 2,5. S for winding 2. 3Un2 3Un2 S is the transformer rated power. In and I n are the phase CT primary currents of winding 1 and 2 respectively. Un1 and Un2 are the voltages of windings 1 and 2 respectively. Restricted earth fault differential protection (ANSI 64REF) b the primary current of the neutral point current transformer used must comply with the following rule: 0.1 In y neutral point CT primary current y 2 In with In = primary current of phase CTs on the same winding b external fault stability is ensured if the phase CT saturation current is more than 2.4 times the earth fault current and 1.6 times the 3-phase fault current. Internal fault sensitivity is ensured if the neutral point CT saturation current is more than twice the earth fault current. 16

19 Installation 1 A / 5 A current transformers DE50056 CCA630 connector Function The CCA630 connector is used to connect Sepam to 1 A or 5 A current transformer secondary windings. It contains 3 interposing ring CTs with through primaries, which ensure impedance matching and isolation between the 1 A or 5 A circuits and Sepam. The connector may be disconnected with the power on since disconnection does not open the CT secondary circuits. 1 Mt10318 Connection b open the 2 side shields for access to the connection terminals. The shields may be removed, if necessary, to make wiring easier. If removed, they must be replaced after wiring. b remove the bridging strap, if necessary. The strap links terminals 1, 2 and 3. b connect the wires using 4 mm ring lugs. The connector accepts wires with crosssections of 1.5 to 6 mm² (AWG 16 to AWG 10). b the terminal 1, 2 and 3 bridging strap is supplied with the CCA630 b close the side shields b plug the connector into the 9-pin inlet on the rear panel b tighten the 2 CCA630 connector fastening screws on the rear panel of Sepam. 17

20 Installation LPCT type current sensors CLP1 sensors 1 PE50031 Function CLP1 sensors are voltage-output sensors of the Low Power Current Transducer (LPCT) type, compliant with the IEC standard. CLP1 sensors are designed to measure rated currents between 25 A and 1250 A, with a ratio of 100 A / 22.5 mv, and may be used on networks with a maximum voltage of 17.5 kv. Characteristics According to IEC standard Rated primary current Rated secondary voltage Rated extended primary current 100 A 22.5 mv 1250 A Measurement accuracy class % between 100 and 1250 A 0.75% at 20 A 1.5% at 5 A Protection accuracy class 5P Rated accuracy limit primary current 40 ka Accuracy burden u 2 kω Rated thermal short-circuit current 31.5 ka x 4 s - 40 ka x 3 s Rated voltage (Um) 17.5 kv CLP1 sensor. Rated power frequency withstand voltage 38 kv - 42 kv Rated lightning impulse withstand voltage 95 kv Weight 8 kg DE50057 CCA670/CCA671 connector Function The secondary winding of the CLP1 sensor is pre-equipped with a 5-meter shielded cable fitted with a yellow RJ 45 plug. The 3 LPCT current transformers are connected to the CCA670 or CCA671 connector on the rear panel of Sepam. The connection of just one or two LPCT sensors is not allowed and causes Sepam to go into fail-safe position. The two CCA670 and CCA671 interface connectors serve the same purpose, the difference being the position of the CLP1 sensor plugs: b CCA670: lateral plugs, for Sepam series 20 and Sepam series 40 b CCA671: radial plugs, for Sepam series 80. Description 1 3 RJ 45 plugs to connect the LPCT sensors. 2 3 blocks of microswitches to set the CCA670/CCA671 to the rated phase current value. 3 Microswitch setting / selected rated current equivalency table (2 In values per setting). 4 9-pin sub-d connector to connect test equipment (ACE917 for direct connector or via CCA613). Rating of CCA670/CCA671 connectors The CCA670/CCA671 connector must be rated according to the rated primary current In measured by the LPCT sensors. The following settings are available, in Amperes: 25, 50, 100, 125, 133, 200, 250, 320, 400, 500, 630, 666, 1000, 1600, 2000, The selected In value should be: b entered as a Sepam general setting b configured by microswitch on the CCA670/CCA671 connector. Instructions: b use a screwdriver to remove the shield located in the "LPCT settings" zone; the shield protects 3 blocks of 8 microswitches marked L1, L2, L3 b on the L1 block, set the microswitch for the selected rated current to "1" (2 In values per microswitch) v the table of equivalencies between the microswitch settings and the selected rated current In is printed on the connector v leave the 7 other microswitches set to "0" b set the other 2 blocks of microswitches L2 and L3 in the same position as the L1 block and close the shield. 18

21 Installation LPCT type current sensors Test accessories DE Accessory connection principle 1 CLP1 sensor, equipped with a shielded cable (L = 5 m) fitted with a yellow RJ 45 plug which is plugged directly into the CCA670/CCA671 connector. 2 Sepam protection unit. 1 3 CCA670/CCA671 connector, CLP1 voltage interface, with microswitch setting of rated current: b CCA670: lateral plugs for Sepam series 20 and Sepam series 40 b CCA671: radial plugs for Sepam series CCA613 remote test plug, flush-mounted on the front of the cubicle and equipped with a 3-meter cord to be plugged into the test plug of the CCA670/CCA671 interface connector (9-pin sub-d). 5 ACE917 injection adapter, to test the LPCT protection chain with a standard injection box. 6 Standard injection box. 1 DE ACE917 injection adapter Function The ACE917 adapter is used to test the protection chain with a standard injection box, when Sepam is connected to LPCT sensors. The ACE917 adapter is inserted between: b the standard injection box b the LPCT test plug: v integrated in the Sepam CCA670/CCA671 interface connector v or transferred by means of the CCA613 accessory. The following are supplied with the ACE917 injection adapter: b power supply cord b 3-meter cord to connect the ACE917 to the LPCT test plug on CCA670/CCA671 or CCA613. Characteristics Power supply 115 / 230 V AC Protection by time-delayed fuse 5 mm x 20 mm 0.25 A rating CCA613 remote test plug Function The CCA613 test plug, flush-mounted on the front of the cubicle, is equipped with a 3-meter cord to transfer data from the test plug integrated in the CCA670/CCA671 interface connector on the rear of Sepam. Description and dimensions 1 Mounting lug 2 Cord DE50059 Front view with cover lifted. Right side view. Cutout. 19

22 Installation CSH120 and CSH200 Core balance CTs 1 PE50032 Function The specifically designed CSH120 and CSH200 core balance CTs are used for direct residual current measurement. The only difference between them is the diameter. Due to their low voltage insulation, they may only be used on cables. Characteristics CSH120 CSH200 Inner diameter 120 mm 200 mm Weight 0.6 kg 1.4 kg Accuracy ±5% to 20 C ±6% max. from -25 C to 70 C Transformation ratio 1/470 Maximum permissible current 20 ka - 1 s Operating temperature - 25 C to +70 C CSH120 and CSH200 core balance CTs. Storage temperature - 40 C to +85 C Dimensions DE10228 Dimensions A B D E F H J K L CSH CSH E40465 E40466 Assembly Group the MV cable (or cables) in the middle of the core balance CT. Use non-conductive binding to hold the cables. Remember to insert the 3 medium voltage cable shielding earthing cables through the core balance CT. Assembly on MV cables. Assembly on mounting plate. DE50064 DE50065 Connection Connection to Sepam series 20 and Sepam series 40 To residual current I0 input, on connector A, terminals 19 and 18 (shielding). Connection to Sepam series 80 b to residual current I0 input, on connector E, terminals 15 and 14 (shielding) b to residual current I 0 input, on connector E, terminals 18 and 17 (shielding). Recommended cable b sheathed cable, shielded by tinned copper braid b minimum cable cross-section 0.93 mm² (AWG 18) b resistance per unit length < 100 mω/m b minimum dielectric strength: 1000 V. It is essential for the CSH30 to be installed near Sepam (Sepam - CSH30 link less than 2 m. Flatten the connection cable against the metal frames of the cubicle. The connection cable shielding is grounded in Sepam. Do not ground the cable by any other means. The maximum resistance of the Sepam connection wiring must not be more than 4 Ω. 20

23 Installation CSH30 Interposing ring CT E40468 E44717 Function The CSH30 interposing ring CT is used as an interface when the residual current is measured using 1 A or 5 A current transformers. 1 Characteristics Weight 0.12 kg Assembly On symmetrical DIN rail In vertical or horizontal position Vertical assembly of CSH30 interposing ring CT. Horizontal assembly of CSH30 interposing ring CT. Dimensions DE50066 Connection The CSH30 is adapted for the type of current transformer, 1 A or 5 A, by the number of turns of the secondary wiring through the CSH30 interposing ring CT : 5 A rating - 4 turns 1 A rating - 2 turns. Connection to 5 A secondary circuit Connection to 1 A secondary circuit PE50033 PE50034 b plug into the connector b insert the transformer secondary wire through the CSH30 core balance CT 4 times. b plug into the connector b insert the transformer secondary wire through the CSH30 core balance CT twice. DE50283 Connection to Sepam series 20 and Sepam series 40 To residual current I0 input, on connector A, terminals 19 and 18 (shielding). Connection to Sepam series 80 b to residual current I0 input, on connector E, terminals 15 and 14 (shielding) b to residual current I 0 input, on connector E, terminals 18 and 17 (shielding). Recommended cable b sheathed cable, shielded by tinned copper braid b minimum cable cross-section 0.93 mm² (AWG 18) (max. 2.5 mm²) b resistance per unit length < 100 mω/m b minimum dielectric strength: 1000 V. It is essential for the CSH30 to be installed near Sepam (Sepam - CSH30 link less than 2 meters long). Flatten the connection cable against the metal frames of the cubicle. The connection cable shielding is grounded in Sepam. Do not ground the cable by any other means. 21

24 Installation ACE990 Core balance CT interface 1 PE50037 Function The ACE990 interface is used to adapt measurements between a MV core balance CT with a ratio of 1/n (50 y n y 1500), and the Sepam residual current input. Characteristics Weight 0.64 kg Assembly Mounted on symmetrical DIN rail Amplitude accuracy ±1% Phase accuracy < 2 Maximum permissible current 20 ka - 1 s (on the primary winding of a MV core balance CT with a ratio of 1/50 that does not saturate) ACE990 core balance CT interface. Operating temperature -5 C to +55 C Storage temperature -25 C to +70 C Description and dimensions DE50069 E ACE990 input terminal block, for connection of the core balance CT. S ACE990 output terminal block, for connection of the Sepam residual current input. 22

25 Installation ACE990 Core balance CT interface DE50071 Example: Given a core balance CT with a ratio of 1/400 2 VA, used within a measurement range of 0.5 A to 60 A. How should it be connected to Sepam via the ACE990? 1 Choose a close approximation of the rated current In0, i.e. 5 A. 2 Calculate the ratio: approx. In0/number of turns = 5/400 = Find the closest value of k in the table opposite: k = Check the mininum power required for the core balance CT: 2 VA core balance CT > 0.1 VA V OK. 5 Connect the core balance secondary to ACE990 input terminals E2 and E4. 6 Set Sepam up with: In0 = x 400 = 4.5 A. This value of In0 may be used to monitor current between 0.45 A and 67.5 A. Wiring of MV core balance secondary circuit: b MV core balance CT S1 output to ACE990 E2 input terminal b MV core balance CT S2 output to ACE990 E4 input terminal. Connection Connection of core balance CT Only one core balance CT may be connected to the ACE990 interface. The secondary circuit of the MV core balance CT is connected to 2 of the 5 ACE990 interface input terminals. To define the 2 inputs, it is necessary to know the following: b core balance CT ratio (1/n) b core balance CT power b close approximation of rated current In0 (In0 is a Sepam general setting and defines the earth fault protection setting range between 0.1 In0 and 15 In0). The table below may be used to determine b the 2 ACE990 input terminals to be connected to the MV core balance CT secondary b the type of residual current sensor to set b the exact value of the rated residual current In0 setting, given by the following formula: In0 = k x number of core balance CT turns with k the factor defined in the table below. The core balance CT must be connected to the interface in the right direction for correct operation: the MV core balance CT secondary output terminal S1 must be connected to the ACE990 input terminal with the lowest index (Ex). K value ACE990 input terminals to be connected Residual current sensor setting E1 - E5 ACE990 - range VA E2 - E5 ACE990 - range VA E1 - E4 ACE990 - range VA E3 - E5 ACE990 - range VA E2 - E4 ACE990 - range VA E1 - E3 ACE990 - range VA E4 - E5 ACE990 - range VA E3 - E4 ACE990 - range VA E2 - E3 ACE990 - range VA E1 - E2 ACE990 - range VA E1 - E5 ACE990 - range VA E2 - E5 ACE990 - range VA E1 - E4 ACE990 - range VA E3 - E5 ACE990 - range VA E2 - E4 ACE990 - range VA E1 - E3 ACE990 - range VA E4 - E5 ACE990 - range VA E3 - E4 ACE990 - range VA E2 - E3 ACE990 - range VA Min. MV core balance CT power Connection to Sepam series 20 and Sepam series 40 To residual current I0 input, on connector A, terminals 19 and 18 (shielding). Connection to Sepam series 80 b to residual current I0 input, on connector E, terminals 15 and 14 (shielding) b to residual current I 0 input, on connector E, terminals 18 and 17 (shielding). Recommended cables b cable between core balance CT and ACE990: less than 50 m long b sheathed cable, shielded by tinned copper braid between the ACE990 and Sepam, maximum length 2 m b cable cross-section between 0.93 mm² (AWG 18) and 2.5 mm² (AWG 13) b resistance per unit length less than 100 mω/m b minimum dielectric strength: 100 V. Connect the ACE990 connection cable shielding in the shortest manner possible (2 cm maximum) to the shielding terminal on the Sepam connector. Flatten the connection cable against the metal frames of the cubicle. The connection cable shielding is grounded in Sepam. Do not ground the cable by any other means. 1 23

26 Installation Remote modules 1 Selection guide 3 remote modules are proposed as options to enhance the Sepam base unit functions: b the number and type of remote modules compatible with the base unit depend on the Sepam application b the DSM303 remote advanced UMI module is only compatible with base units that do not have integrated advanced UMIs. Sepam series 20 Sepam series 40 Sepam series 80 S2x, B2x T2x, M2x S4x T4x, M4x, G4x S8x T8x, M8x, G8x MET148-2 Temperature sensor module See page MSA141 Analog output module See page DSM303 Remote advanced UMI module See page Number of sets of interlinked modules / maximum number of remote modules 1 set of 3 interlinked modules 1 set of 3 interlinked modules 4 modules split between 2 sets of interlinked modules DE50088 Connection Connection cords Different combinations of modules may be connected using cords fitted with 2 black RJ45 connectors, which come in 3 lengths: b CCA770: length = 0.6 m b CCA772: length = 2 m b CCA774: length = 4 m. The modules are linked by cords which provide the power supply and act as functional links with the Sepam unit (connector D to connector Da, Dd to Da, ). Rules on inter-module linking b linking of 3 modules maximum b DSM303 module may only be connected at the end of the link. Maximum advisable configurations Sepam series 20 and Sepam series 40: just 1 set of interlinked modules Base Cord Module 1 Cord Module 2 Cord Module 3 DE50089 series 20 CCA772 MSA141 CCA770 MET148-2 CCA774 DSM303 series 40 CCA772 MSA141 CCA770 MET148-2 CCA774 DSM303 series 40 CCA772 MSA141 CCA770 MET148-2 CCA772 MET148-2 series 40 CCA772 MET148-2 CCA770 MET148-2 CCA774 DSM303 Sepam series 80: 2 sets of interlinked modules Sepam series 80 has 2 connection ports for remote modules, D1 and D2. Modules may be connected to either port. Base Cord Module 1 Cord Module 2 Cord Module 3 DE50090 Example of inter-module linking on Sepam series 20. Set 1 D1 CCA772 MSA141 CCA770 MET148-2 CCA770 MET148-2 Set 2 D2 CCA774 DSM

27 Installation MET148-2 Temperature sensor modules PE50021 MET148-2 temperature sensor module. Function The MET148-2 module may be used to connect 8 temperature sensors (RTDs) of the same type: b Pt100, Ni100 or Ni120 type RTDs, according to parameter setting b 3-wire temperature sensors b a single module for each Sepam series 20 base unit, to be connected by one of the CCA770, CCA772 or CCA774 cords (0.6 or 2 or 4 meters)) b 2 modules for each Sepam series 40 or series 80 base unit, to be connected by CCA770, CCA772 or CCA774 cords (0.6 or 2 or 4 meters). The temperature measurement (e.g. in a transformer or motor winding) is utilized by the following protection functions: b thermal overload (to take ambient temperature into account) b temperature monitoring. Characteristics MET148-2 module Weight 0.2 kg Assembly On symmetrical DIN rail Operating temperature -25 C to +70 C Environmental characteristics Same characteristics as Sepam base units RTDs Pt100 Ni100 / Ni120 Isolation from earth None None Current injected in RTD 4 ma 4 ma 1 DE50085 Description and dimensions A Terminal block for RTDs 1 to 4. B Terminal block for RTDs 5 to 8. Da RJ45 connector to connect the module to the base unit with a CCA77x cord. Dd RJ45 connector to link up the next remote module with a CCA77x cord (according to application). t Grounding/earthing terminal. 1 Jumper for impedance matching with load resistor (Rc), to be set to: b Rc, if the module is not the last interlinked module (default position) b Rc, if the module is the last interlinked module. 2 Jumper used to select module number, to be set to: b MET1: 1st MET148-2 module, to measure temperatures T1 to T8 (default position) b MET2: 2nd MET148-2 module, to measure temperatures T9 to T16 (for Sepam series 40 and series 80 only). MT10153 (1) 70 mm with CCA77x cord connected. Connection Connection of the earthing terminal By tinned copper braid or cable fitted with a 4 mm ring lug. Connection of RTDs to screw-type connectors b 1 wire with cross-section 0.2 to 2.5 mm² (u AWG 24-12) b or 2 wires with cross-section 0.2 to 1 mm² (u AWG 24-16). Recommended cross-sections according to distance: b up to 100 m u 1 mm², AWG 16 b up to 300 m u 1.5 mm², AWG 14 b up to 1 km u 2.5 mm², AWG 12 Wiring precautions b it is preferable to use shielded cables The use of unshielded cables may cause measurement errors, which vary in degree on the level of surrounding electromagnetic disturbance b only connect the shielding at the MET148-2 end, in the shortest manner possible, to the corresponding terminals of connectors A and B b do not connect the shielding at the RTD end. Accuracy derating according to wiring The error t is proportional to the length of the cable and inversely proportional to the cable cross-section: t ( C) = 2 L( km) Smm ( 2 ) b ±2.1 C/km for 0.93 mm² cross-section b ±1 C/km for 1.92 mm² cross-section. 25

28 Installation MSA141 Analog output module 1 Mt11009 MSA141 analog output module. Function The MSA141 module converts one of the Sepam measurements into an analog signal: b selection of the measurement to be converted by parameter setting b 0-10 ma, 4-20 ma, 0-20 ma analog signal according to parameter setting b scaling of the analog signal by setting minimum and maximum values of the converted measurement. Example: the setting used to have phase current 1 as a 0-10 ma analog output with a dynamic range of 0 to 300 A is: v minimum value = 0 v maximum value = 3000 b a single module for each Sepam base unit, to be connected by one of the CCA770, CCA772 or CCA774 cords (0.6 or 2 or 4 meters). The analog output may also be remotely managed via the Modbus communication network. Characteristics MSA141 module Weight 0.2 kg Assembly On symmetrical DIN rail Operating temperature -25 C to +70 C Environmental characteristics Same characteristics as Sepam base units Analog output Current 4-20 ma, 0-20 ma, 0-10 ma Scaling (no data input checking) Minimum value Maximum value Load impedance < 600 Ω (wiring included) Accuracy 0.5 % Measurements available Unit Series 20 Series 40 Series 80 Phase and residual currents 0.1 A b b b Phase-to-neutral and phase-to-phase 1 V b b b voltages Frequency 0.01 Hz b b b Thermal capacity used 1% b b b Temperatures 1 C b b b Active power 0.1 kw b b Reactive power 0.1 kvar b b Apparent power 0.1 kva b b Power factor 0.01 b Remote setting via communication link b b b DE50084 Description and dimensions A Da Dd t Terminal block for analog output. RJ45 connector to connect the module to the base unit with a CCA77x cord. RJ45 connector to link up the next remote module with a CCA77x cord (according to application). Grounding/earthing terminal. 1 Jumper for impedance matching with load resistor (Rc), to be set to: b Rc, if the module is not the last interlinked module (default position) b Rc, if the module is the last interlinked module. (1) 70 mm with CCA77x cord connected. Connection MT10152 Earthing terminal connection By tinned copper braid or cable fitted with a 4 mm ring lug. Connection of analog output to screw-type connector b 1 wire with cross-section 0.2 to 2.5 mm² (u AWG 24-12) b or 2 wires with cross-section 0.2 to 1 mm² (u AWG 24-16). Wiring precautions b it is preferable to use shielded cables b use tinned copper braid to connect the shielding at least at the MSA141 end. 26

29 Installation DSM303 Remote advanced UMI module PE50127 Function When associated with a Sepam that does not have its own advanced user-machine interface, the DSM303 offers all the functions available on a Sepam integrated advanced UMI. It may be installed on the front panel of the cubicle in the most suitable operating location: b reduced depth (< 30 mm) b a single module for each Sepam, to be connected by one of the CCA772 or CCA774 cords (2 or 4 meters). 1 The module may not be connected to Sepam units with integrated advanced UMIs. DSM303 remote advanced UMI module. Characteristics DSM303 module Weight Assembly Operating temperature Environmental characteristics Description and dimensions 0.3 kg Flush-mounted -25 C to +70 C Same characteristics as Sepam base units DE50063 DE50055 Cut-out for flush-mounting (mounting plate thickness < 3 mm) 1 Green LED: Sepam on. 2 Red LED: - steadily on: module unavailable - flashing: Sepam link unavailable. 3 9 yellow indicator LEDs. 4 Graphical LCD screen. 5 Display of measurements. 6 Display of switchgear, network and machine diagnosis data. 7 Display of alarm messages. 8 Sepam reset (or confirm data entry). 9 Alarm acknowledgement and clearing (or move cursor up). 10 LED test (or move cursor down). 11 Access to protection settings. 12 Access to Sepam parameters. 13 Entry of 2 passwords. 14 PC RS 232 connection port. Da RJ45 lateral output connector to connect the module to the base unit with a CCA77x cable. 1 Mounting clip. 2 Gasket to ensure NEMA 12 tightness (gasket delivered with the DSM303 module, to be installed if necessary). Connection MT10151 Da RJ45 connector to connect the module to the base unit with a CCA77x cord. The DSM303 module is always the last interlinked remote module and it systematically ensures impedance matching by load resistor (Rc). 27

30 Installation Communication accessories 1 There are 2 types of Sepam communication accessories: b communication interfaces, which are essential for connecting Sepam to the communication network b converters and other accessories, as options, which are used for complete implementation of the communication network. Communication accessory selection guide DE ACE909-2 RS 232 / 2-wire RS 485 converter with distributed 12 V DC or 24 V DC power supply 2 ACE919CA or ACE919CC 2-wire RS 485 / 2-wire RS 485 converter with distributed 12 V DC or 24 V DC power supply See page 34 See page 36 3 ACE wire RS 485 network communication interface See page 31 4 ACE959 4-wire RS 485 network communication interface See page 32 5 ACE937 Fiber optic network communication interface See page 33 6 CCA612 Connection cord See page wire RS 485 network cable See page wire RS 485 network cable See page 30 9 Fiber optic Characteristics Sepam Modbus communication port Type of transmission Asynchronous serial Protocol Modbus Response time < 15 ms Maximum number of slaves 25 Data format 10 bits: 1 start, 8 data, 1 stop or 11 bits: 1 start, 8 data, 1 parity, 1 stop Parameters Slave address 1 to 255 Transmission rate 4800, 9600, 19200, bauds Parity check None, even, odd 28

31 Installation Communication protocols and gateways Modbus protocol Modbus is an open, international Master / Slave protocol. Modbus communication networks consist of a Master station and Slave stations. Only the Master station may initiate exchanges (direct communication between Slave stations is not feasible). Two exchange mechanisms are possible: b question/answer, whereby the Master sends a request to a given Slave and the Slave is expected to reply b broadcasting, whereby the Master broadcasts a message to all the Slaves on the network. The slaves execute the orders without sending a reply. The Modbus protocol used by Sepam is a compatible sub-group of the RTU Modbus protocol. Sepam is always a Slave station. 1 Ethernet and Webserver connection Sepam may be connected to an Ethernet high speed network by means of a Modbus-RS 485/Modbus - Ethernet TCP/IP communication interface. This interface allows: b integration of Sepam in a multi-master architecture on Ethernet networks b consultation of Web pages of data transmitted by Sepam via an Internet/Intranet browser. PE50028 DE50281 PE50027 EGX200 Ethernet gateway. Example of Sepam integration in a multi-master architecture. Mt11019 Other protocols Sepam may be connected to communication networks based on protocols other than Modbus by using a gateway / protocol converter. In particular, a Modbus / DNP3 converter has been qualified for the connection of Sepam to DNP3 networks. Please consult us for more information. PowerLogic System Sepam fits naturally into PowerLogic System power management systems. Supervision of an electrical network equipped with Sepam by means of PowerLogic System SMS software. 29

32 Installation Communication interfaces 1 CCA612 connection cord Cord used to connect a communication interface to a Sepam base unit: b length = 3 m b fitted with 2 green RJ45 plugs. Sepam / communication interface connection Sepam series 20 and Sepam series 40 Sepam series 80 DE50091 DE50092 Sepam series 20 and Sepam series 40: 1 communication port. Sepam series 80: 2 communication ports. RS 485 network cable Characteristics RS 485 network cable 2-wire 4-wire RS 485 medium 1 shielded twisted pair 2 shielded twisted pairs Distributed power supply 1 shielded twisted pair 1 shielded twisted pair Shielding Tinned copper braid, coverage > 65 % Characteristic impedance 120 Ω Gauge AWG 24 Resistance per unit length < 100 Ω/km Capacitance between conductors < 60 pf/m Capacitance between conductor and shielding Maximum length < 100 pf/m 1300 m Examples of standard cables for 2-wire RS 485 networks b supplier: BELDEN, reference 9842 b supplier: FILOTEX, reference FMA-2PS. High-performance cable (for 2-wire RS 485 networks): b supplier: FILECA, reference F (cable distributed by Schneider Electric in 60 m strands, reference CCR301). For further information, refer to the "Sepam - RS 485 network connection guide", PCRED399074EN. 30

33 Installation ACE wire RS 485 network interface PE50029 Function The ACE949-2 interface performs 2 functions: b electrical interface between Sepam and a 2-wire RS 485 communication network b main network cable branching box for the connection of a Sepam with a CCA612 cord. 1 DE50074 ACE wire RS 485 network connection interface. (1) 70 mm with CCA612 cord connected. Characteristics ACE949-2 module Weight Assembly Operating temperature Environmental characteristics 2-wire RS 485 electrical interface Standard 0.1 kg On symmetrical DIN rail -25 C to +70 C Same characteristics as Sepam base units EIA 2-wire RS 485 differential Distributed power supply External, 12 V DC or 24 V DC ±10 % Consumption 16 ma in receiving mode 40 ma maximum in sending mode Maximum length of 2-wire RS 485 network with standard cable Number of Sepam units Maximum length with 12 V DC power supply Maximum length with 24 V DC power supply m 1000 m m 750 m m 450 m m 375 m Note: lengths multiplied by 3 with FILECA F high-performance cable. Description and dimensions A and B Terminal blocks for network cable. C t RJ45 plug to connect the interface to the base unit with a CCA612 cord. Grounding/earthing terminal. 1 Green LED, flashes when communication is active (sending or receiving in progress). 2 Jumper for RS 485 network line-end impedance matching with load resistor (Rc), to be set to: b Rc, if the module is not at one end of the RS 485 network (default position) b Rc, if the module is at one end of the RS 485 network. 3 Network cable clamps (inner diameter of clamp = 6 mm). Mt11048 Connection b connection of network cable to screw-type terminal blocks A and B b connection of earthing terminal by tinned copper braid or cable fitted with 4 mm ring lug b the interfaces are fitted with clamps to hold the network cable and recover shielding at the incoming and outgoing points of the network cable: v the network cable must be stripped v the cable shielding braid must be around and in contact with the clamp b the interface is to be connected to connector C on the base unit using a CCA612 cord (length = 3 m, green fittings) b the interfaces are to be supplied with 12 V DC or 24 V DC b refer to the "Sepam - RS 485 network connection guide " PCRED399074EN for all the details on how to implement a complete RS 485 network. 31

34 Installation ACE959 4-wire RS 485 network interface 1 DE50282 DE50083 PE50023 ACE959 4-wire RS 485 network connection interface. (1) 70 mm with CCA612 cord connected. Function The ACE959 interface performs 2 functions: b electrical interface between Sepam and a 4-wire RS 485 communication network b main network cable branching box for the connection of a Sepam with a CCA612 cord. Characteristics ACE959 module Weight 0.2 kg Assembly On symmetrical DIN rail Operating temperature -25 C to +70 C Environmental characteristics Same characteristics as Sepam base units 4-wire RS 485 electrical interface Standard EIA 4-wire RS 485 differential Distributed power supply External, 12 V DC or 24 V DC ±10 % Consumption 16 ma in receiving mode 40 ma maximum in sending mode Maximum length of 4-wire RS 485 network with standard cable Number of Sepam units Maximum length with 12 V DC power supply Maximum length with 24 V DC power supply m 1000 m m 750 m m 450 m m 375 m Note: lengths multiplied by 3 with FILECA F high-performance cable. Description and dimensions A and B Terminal blocks for network cable. C D t RJ45 plug to connect the interface to the base unit with a CCA612 cord. Terminal block for a separate auxiliary power supply (12 V DC or 24 V DC). Grounding/earthing terminal. 1 Green LED, flashes when communication is active (sending or receiving in progress). 2 Jumper for RS 485 network line-end impedance matching with load resistor (Rc), to be set to: b Rc, if the module is not at one end of the RS 485 network (default position) b Rc, if the module is at one end of the RS 485 network. 3 Network cable clamps (inner diameter of clamp = 6 mm). Connection b connection of network cable to screw-type terminal blocks A and B b connection of earthing terminal by tinned copper braid or cable fitted with 4 mm ring lug b the interfaces are fitted with clamps to hold the network cable and recover shielding at the incoming and outgoing points of the network cable: v the network cable must be stripped v the cable shielding braid must be around and in contact with the clamp b the interface is to be connected to connector C on the base unit using a CCA612 cord (length = 3 m, green fittings) b the interfaces are to be supplied with 12 V DC or 24 V DC b the ACE959 can be connected to a separate distributed power supply (not included in shielded cable). Terminal block D is used to connect the distributed power supply module b refer to the "Sepam - RS 485 network connection guide" PCRED399074EN for all the details on how to implement a complete RS 485 network. Nota : Sepam receiving: Rx+, Rx- (or IN+, IN-) Sepam sending: Tx+, Tx- (or OUT+, OUT-). 32

35 Installation ACE937 Fiber optic interface PE50024 Function The ACE937 interface is used to connect Sepam to a fiber optic communication star system. This remote module is connected to the Sepam base unit by a CCA612 cord. 1 ACE937 fiber optic connection interface. Characteristics ACE937 module Weight Assembly Power supply Operating temperature Environmental characteristics Fiber optic interface Wavelength Type of connector Fiber type Fiber optic diameter (µm) Numerical aperture (NA) Maximum attenuation (dbm/km) 0.1 kg On symmetrical DIN rail Supplied by Sepam -25 C to +70 C Same characteristics as Sepam base units 820 nm (infra-red) ST Multimode glass Minimum optical power available (dbm) 50/ / / (HCS) Maximum length of fiber (m) Maximum length calculated with: b minimum optical power available b maximum fiber attenuation b losses in 2 ST connectors: 0.6 dbm b optical power margin: 3 dbm (according to IEC60870 standard). Example for a 62.5/125 µm fiber Lmax = ( ) / 3.2 = 1.8 km. DE50273 Description and dimensions C RJ 45 plug to connect the interface to the base unit with a CCA612 cord. 1 Green LED, flashes when communication is active (sending or receiving in progress).. 2 Rx, female ST type connector (Sepam receiving). 3 Tx, female ST type connector (Sepam sending). (1) 70 mm with CCA612 cord connected. DE50274 Connection b the sending and receiving fiber optics fibers must be equipped with male ST type connectors b fiber optics screw-locked to Rx and Tx connectors b the interface is to be connected to connector C on the base unit using a CCA612 cord (length = 3 m, green fittings). 33

36 Installation ACE909-2 RS 232 / RS 485 converter 1 PE50035 Function The ACE909-2 converter is used to connect a master/central computer equipped with a V24/RS 232 type serial port as a standard feature to stations connected to a 2-wire RS 485 network. Without requiring any flow control signals, after the parameters are set, the ACE909-2 converter performs conversion, network polarization and automatic dispatching of Modbus frames between the master and the stations by two-way simplex (half-duplex, single-pair) transmission. The ACE909-2 converter also provides a 12 V DC or 24 V DC supply for the distributed power supply of the Sepam ACE949-2 or ACE959 interfaces. The communication settings should be the same as the Sepam and master communication settings. ACE909-2 RS 232 / RS 485 converter. Characteristics Mechanical characteristics Weight kg On symmetrical or asymmetrical DIN rail Assembly Electrical characteristics Power supply 110 to 220 V AC ±10%, 47 to 63 Hz Galvanic isolation 2000 Vrms, 50 Hz, 1 min between power supply and frame, and between power supply and interface supply Galvanic isolation 1000 Vms, 50 Hz, 1 min between RS 232 and RS 485 interfaces Protection by time-delayed fuse 5 mm x 20 mm 1 A rating Communication and Sepam interface distributed supply Data format 11 bits: 1 start, 8 bits, 1 parity, 1 stop Transmission delay < 100 ns distributed power supply for Sepam interfaces 12 V DC or 24 V DC Maximum number of Sepam interfaces with 12 distributed supply Environmental characteristics Operating temperature -5 C to +55 C Electromagnetic compatibility IEC standard Value 5 ns fast transient bursts kv with capacitive coupling in common mode 2 kv with direct coupling in common mode 1 kv with direct coupling in differential mode 1 MHz damped oscillating wave kv common mode 0.5 kv differential mode 1.2, 50 µs impulse wave kv common mode 1 kv differential mode 34

37 Installation ACE909-2 RS 232 / RS 485 converter DE50039 DE50038 DE50037 Male 9-pin sub-d connector supplied with the ACE Description and dimensions A B C Terminal block for RS 232 link limited to 10 m. Female 9-pin sub-d connector to connect to the 2-wire RS 485 network, with distributed power supply. 1 screw-type male 9-pin sub-d connector is supplied with the converter. Power supply terminal block. 1 Distributed power supply voltage selector switch, 12 V DC or 24 V DC. 2 Protection fuse, unlocked by a 1/4 turn. 3 Indication LEDs: b ON/OFF: on if ACE909-2 is energized b Tx: on if RS 232 sending by ACE909-2 is active b Rx on: if RS 232 receiving by ACE909-2 is active 4 SW1, parameter setting of 2-wire RS 485 network polarization and line impedance matching resistors Function SW1/1 SW1/2 SW1/3 Polarization at 0 V via Rp -470 Ω ON Polarization at 5 V via Rp +470 Ω ON 2-wire RS 485 network impedance ON matching by 150 Ω resistor 5 SW2, parameter setting of asynchronous data transmission rate and format (same parameters as for RS 232 link and 2-wire RS 485 network). Rate (bauds) SW2/1 SW2/2 SW2/ Format SW2/4 SW2/5 With parity check 0 Without parity check 1 1 stop bit (compulsory for Sepam) 0 2 stop bits 1 Converter configuration when delivered b 12 V DC distributed power supply b 11 bit format, with parity check b 2-wire RS 485 network polarization and impedance matching resistors activated. Connection RS 232 link b to 2.5 mm² screw-type terminal block A b maximum length 10 m b Rx/Tx: RS 232 receiving/sending by ACE909-2 b 0V: Rx/Tx common, do not earth. 2-wire RS 485 link with distributed power supply b to female 9-pin sub-d connector B b 2-wire RS 485 signals: L+, L- b distributed power supply: V+ = 12 V DC or 24 V DC, V- = 0 V. Power supply b to 2.5 mm² screw-type terminal block C b reversible phase and neutral b earthed via terminal block and metal case (ring lug on back of case). 1 35

38 Installation ACE919CA and ACE919CC RS 485 / RS 485 converters 1 PE50036 Function The ACE919 converters are used to connect a master/central computer equipped with an RS 485 type serial port as a standard feature to stations connected to a 2-wire RS 485 network. Without requiring any flow control signals, the ACE919 converters perform network polarization and impedance matching. The ACE919 converters also provide a 12 V DC or 24 V DC supply for the distributed power supply of the Sepam ACE949-2 or ACE959 interfaces. There are 2 types of ACE919: b ACE919CC, DC-powered b ACE919CA, AC-powered. Characteristics Mechanical characteristics Weight kg Assembly On symmetrical or asymmetrical DIN rail ACE919CC RS 485 / RS 485 converter. Electrical characteristics ACE919CA ACE919CC Power supply 110 to 220 V AC ±10%, 47 to 63 Hz 24 to 48 V DC ±20% Protection by time-delayed fuse 5 mm x 20 mm 1 A rating 1 A rating Galvanic isolation between power supply and frame, and between power supply and interface supply 2000 Vrms, 50 Hz, 1 min Communication and Sepam interface distributed supply Data fomat 11 bits : 1 start, 8 bits, 1 parity, 1 stop Transmission delay < 100 ns Distributed power supply for Sepam interfaces 12 V DC or 24 V DC Maximum number of Sepam interfaces with 12 distributed supply Environmental characteristics Operating temperature -5 C to +55 C Electromagnetic compatibility IEC standard Value 5 ns fast transient bursts kv with capacitive coupling in common mode 2 kv with direct coupling in common mode 1 kv with direct coupling in differential mode 1 MHz damped oscillating wave kv common mode 0.5 kv differential mode 1.2, 50 µs impulse wave kv common mode 1 kv differential mode 36

39 Installation ACE919CA and ACE919CC RS 485 / RS 485 converters DE50067 DE50038 Description and dimensions A B C Terminal block for 2-wire RS 485 link without distributed power supply. Female 9-pin sub-d connector to connect to the 2-wire RS 485 network, with distributed power supply. 1 screw-type male 9-pin sub-d connector is supplied with the converter. Power supply terminal block. 1 Distributed power supply voltage selector switch, 12 V DC or 24 V DC. 2 Protection fuse, unlocked by a 1/4 turn. 3 ON/OFF LED: on if ACE919 is energized. 4 SW1, parameter setting of 2-wire RS 485 network polarization and impedance matching resistors. Function SW1/1 SW1/2 SW1/3 Polarization at 0 V via Rp -470 Ω ON Polarization at 5 V via Rp +470 Ω ON 2-wire RS 485 network impedance ON matching by 150 Ω resistor Converter configuration when delivered b 12 V DC distributed power supply b 2-wire RS 485 network polarization and impedance matching resistors activated. 1 Male 9-pin sub-d connector supplied with the ACE919. DE50040 Connection 2-wire RS 485 link without distributed power supply b to 2.5 mm² screw-type terminal block A b L+, L-: 2-wire RS 485 signals b t Shielding. 2-wire RS 485 link with distributed power supply b to female 9-pin sub-d connector B b 2-wire RS 485 signals: L+, L- b distributed power supply : V+ = 12 V DC or 24 V DC, V- = 0 V. Power supply b to 2.5 mm² screw-type terminal block C b reversible phase and neutral (ACE919CA) b earthed via terminal block and metal case (ring lug on back of case). 37

40 1 38

41 Use Contents User Machine Interfaces 40 Expert UMI - SFT Presentation 41 General screen organization 42 Use of the software 44 Advanced UMI 46 White keys for current operation 48 Blue keys for parameter and protection setting 50 Data entry principles 52 Default settings

42 Use User Machine Interfaces Sepam series 80 includes a front panel or remote UMI with keypad and graphic LCD display which gives access to all the information necessary for local operation and adjustment of Sepam settings. 2 The UMI on the front panel of Sepam may be completed by an expert UMI comprising the SFT2841 PC software tool, which may be used for all Sepam parameter setting, local operation and customization functions. The expert UMI comes as a kit, the SFT2841 kit, which includes: b a CD-ROM, with v SFT2841 setting and operation software v SFT2826 disturbance recording file display software b CCA783 cord, for connection between the PC and the serial port on the front panel of Sepam. PE

43 Use Expert UMI - SFT2841 Presentation The expert UMI is available on the screen of a PC equipped with the SFT2841 software tool and connected to the RS 232 link on the front panel of Sepam (run in a Windows 95, 98, NT, 2000 or XP environment). All the data used for the same task are grouped in the same screen to facilitate operation. Menus and icons are used for fast, direct access to the data required. Normal operation b display of all metering and operation data b display of alarm messages with the time of appearance (date, hour, min, s, ms) b display of diagnosis data such as tripping current, number of switchgear operations and cumulative breaking current b display of all protection and parameter settings b display of the logic status of inputs, outputs and LEDs. This UMI is the solution suited to occasional local operation, for demanding personnel who require fast access to all the information. Parameter and protection settings (1) b display and setting of all the parameters of each protection function on the same page b control logic parameter setting, parameter setting of general installation and Sepam data b input data may be prepared ahead of time and transferred into the Sepam in a single operation (loading function). Main functions performed by SFT2841 b changing of passwords b entry of general settings (ratings, integration period, ) b entry of protection settings b changing of control logic assignments b enabling/disabling of functions b saving of files. Saving b protection and parameter setting data may be saved b printing of reports is possible as well. This UMI may also be used to retrieve disturbance recording files and display them using the SFT2826 software tool. Operating assistance Access from all screens to a help section containing all the technical information needed to use and commission Sepam. PE50149 PE50150 Example of a measurement display screen. Example of a directional earth fault protection setting screen. 2 (1) Modes accessed via 2 passwords (protection setting level, parameter setting level). 41

44 Use Expert UMI - SFT2841 General screen organization 2 A Sepam document is displayed on the screen via a graphic interface that has the conventional Windows features. All the SFT2841 software screens are set up in the same way. They include: 1 The title bar, with: b name of the application (SFT2841) b identification of the Sepam document displayed b corner symbols for window adjustments 2 The menu bar, for access to all the SFT2841 software functions (unavailable functions are dimmed). 3 The toolbar, a group of contextual icons for quick access to the main functions (also accessed via the menu bar). 4 The work zone available to the user, presented in the form of tab boxes. 5 The status bar, with the following information relating to the active document: b alarm on b identification of the connection window b SFT2841 operating mode, connected or not connected b type of Sepam b identification of Sepam edited b identification level b Sepam operating mode b PC date and time. PE50151 PE50152 Example of hardware configuration screen. Guided navigation A guided navigation mode is proposed to make it easier to enter all of the Sepam parameter and protection settings. It guides users through all data input screens in the natural order. The sequencing of the screens in guided mode is controlled by clicking on 2 icons in the toolbar3 b : to go back to the previous screen b : to go to the next screen. The screens are linked up in the following order: 1. Sepam hardware configuration 2. General characteristics 3. CT/VT sensors 4. CT/VT circuit supervision 5. Particular characteristics 6. Control logic 7. Logic input/output assignments 8. Setting screens for the protection functions available, according to the type of Sepam 9. Logic equation editor 10. Various tabs of the control matrix 11. Parameter setting of the disturbance recording function. Example of general characteristics screen. On-line help The operator may look up on-line help at any time via the "?" command in the menu bar. Acrobat Reader is required for on-line help. It is provided on the CD. 42

45 Use Expert UMI - SFT2841 General screen organization Details of the different screens b identification: entry of the password gives the user access rights to the parameter and protection mode (valid for 5 minutes) PE50153 b selection of a new application from a list of application files with factory settings. The file suffix identifies the application. e.g.: "appli.g87" is for a Generator 87 application b opening of an existing application which, in principle, should be located in the "Sepam" subdirectory of the "SFT2841" directory. A type of application may be selected by choosing the type of file (e.g.: file type *.S80, or *. G87 or *.* to obtain the complete list of files) 2 b saving of an application: go to the "Sepam" subdirectory of the "SFT2841" directory, and name the file. The application suffix is updated automatically b configuration and complete or partial printing of the current configuration file b print preview of the configuration file b hard-copy of the current screen b Sepam parameter setting: v "Sepam hardware" tab: hardware configuration. v "General characteristics" tab: setting of the network, remote control and monitoring, password management and Sepam label printing parameter v "CT/VT sensors" tab: configuration of current and voltage sensors v "CT/VT supervision" tab: implementation and configuration of CT and VT sensor supervision v "Particular characteristics" tab: parameter setting of transformer, motor/generator rotation speed v "Control logic" tab: parameter setting of the switchgear control, logic discrimination, genset shutdown, de-excitation, load shedding and restart functions v "Logic I/Os" tab: management of logic input and output assignment b protection functions: v "Application" tab: overview of the protection functions available in the application with graphical view of the single-line diagram. A double click on a protection function label gives quick access to the setting tab v 1 tab per protection function: setting of the parameters of each protection function, with a minimatrix for setting of the outputs, LEDs and disturbance recording Example of tripping contexts screen. b parameter setting of the disturbance recording function b (1) Sepam diagnosis v "Diagnosis" tab: general characteristics, software version, fault indicator and Sepam time-setting v "Input, output and LED status" tab: gives status and proposes an output test v "Remote indication status" tab: remote indication status b (1) main measurements v "UIF" tab: voltage, current and frequency values v "Other" tab: power, energy and rotation speed values v "Temperatures" tab b (1) diagnosis v "Network" tab: unbalance / negative sequence, V-I phase displacement, number of phase and earth trips and total harmonic distortion values v "Machine" tab: running hours counter, differential and through current, impedance, I-I phase displacement, H3 voltage and thermal overload values v "Tripping context" tab: gives the last 5 tripping contexts b (1) switchgear diagnosis: cumulative breaking current, auxiliary voltage and circuit breaker data b (1) management of alarms with history and time-tagging b (1) disturbance recording: this function is used to record analog signals and logical states. See next page for commissioning information b guided navigation: see previous page b on-line help: see previous page v creation of logic equations: see description in "Control and monitoring functions" chapter b control matrix: used to assign logic outputs, LEDs and messages to information produced by the protection units, logic inputs and logic equations. b this function may also be used to create messages: see "Creation of user messages" on next page (1) These icons are only accessible in "connected to Sepam" mode. 43

46 Use Expert UMI - SFT2841 Use of the software 2 Not connected to Sepam mode Sepam parameter and protection setting Sepam parameter and protection setting using SFT2841 consists of preparing the Sepam file containing all the characteristics that are specific to the application, a file that is then downloaded into Sepam at the time of commissioning. Operating procedure: b create a Sepam file for the type of Sepam to be set up (the newly created file contains the factory settings of the Sepam parameters and protection functions) b modify the Sepam general settings and protection function settings: v all the data relating to the same function are grouped together in the same screen v it is advisable to enter all the parameters and protection settings in the natural order of the screens proposed by the guided navigation mode. Entry of parameter and protection settings b the parameter and protection setting input fields are suited to the type of value: v choice buttons v numerical value input fields v dialogue box (Combo box) b the user must "Apply" or "Cancel" the new values entered before going on to the following screen b the consistency of the new values applied is checked: v an explicit message identifies inconsistent values and specifies the allowable values v values that have become inconsistent following a parameter modification are adjusted to the closest consistent value. Connected to Sepam mode Precaution When a laptop is used, given the risks inherent to the accumulation of static electricity, the customary precaution consists of discharging in contact with an earthed metal frame before physically connecting the CCA783 cord (supplied with the SFT2841 kit). Plugging into Sepam b plugging of the 9-pin connector (SUB-D type) into one of the PC communication ports. Configuration of the PC communication port via the "Communication port" function in the "Options" menu. b plugging of the 6-pin connector into the connector (round MiniDin type) situated behind the blanking plate on the front panel of Sepam or the DSM303 module. Connection to Sepam 2 possibilities for setting up the connection between SFT2841 and Sepam: b "Connection" function in the "File" menu b choice of "connect to the Sepam" at the start-up of SFT2841. Once the connection with Sepam has been established, "Connected" appears in the status bar, and the Sepam connection window may be accessed in the work zone. User identification The window intended for the entry of the 4-digit password is activated: b via the "General characteristics" tab, "Passwords" button b via the "Identification" function in the "Sepam" menu. The "Return to Operating mode" function in the "Passwords" tab withdraws access rights to the parameter and protection setting mode. Downloading of parameters and protection settings Parameter and protection setting files may only be loaded in the connected Sepam in Parameter setting mode. Once the connection has been established, the procedure for loading a parameter and protection setting file is as follows: b activate the "Load Sepam" function in the "Sepam" menu b select the file (*.S80, *.S81, *.S82, *.T81, *.T82, *.T87, *.M81, *.M87, *.M88, *.G82, *.G87 or *.G88 according to the type of application) which contains the data to be loaded. Return to factory settings This operation is only possible in Parameter setting mode, via the "Sepam" menu. All of the Sepam general settings, protection settings and the control matrix go back to the default values. The return to factory settings does not erase the logic equations. The logic equation editor must be used to delete them. Unloading of parameter and protection settings The connected Sepam parameter and protection setting file may only be unloaded in Operating mode. Once the connection has been established, the procedure for unloading a parameter and protection setting file is as follows: b activate the "Unload Sepam" function in the "Sepam" menu b select the *.rpg file that is to contain the unloaded data b acknowledge the end of operation report. Local operation of Sepam Connected to Sepam, SFT2841 offers all the local operating functions available in the advanced UMI screen, plus the following functions: b setting of Sepam s internal clock, via the "Sepam diagnosis" tab b implementation of the disturbance recording function: enabling/disabling of the function, retrieval of Sepam files, start-up of SFT2826 b consultation of the history of the last 250 Sepam alarms, with time-tagging b access to Sepam diagnostic data, in the "Sepam" tab box, included in "Sepam diagnosis" b in Parameter setting mode, switchgear diagnosis values may be modified: operation counter and cumulative breaking current to reset the values after a breaking device is changed. 44

47 Use Expert UMI - SFT2841 Use of the software Creation of user messages This operation is carried out using the control matrix ( icon or "application / set control matrix" menu). When the matrix is displayed, select the "Events" tab, double-click on the empty box of the message to be created, or on an existing message to modify it. A new screen may be used to: b create a new user message: v click on the "Create messages" button b modify the message you have created or an existing user message: v select the message number in the "No." column v click on the "Modify" button v an editing or bitmap window may be used to create text or drawings b assign the message to the line in the control matrix: v select "message" if it has not already been selected v select the new predefined or user message in the corresponding "No." column v click on "Assign" v confirm your choice by clicking on the "OK" button. PE Example of message creation screen. Implementation of disturbance recording Disturbance recording is set up using the icon. Select commissioning. Set the following: b number of recordings b duration of each recording b number of samples stored per period b number of Pretrig periods (number of periods stored before the disturbance recording triggering event). Then make up the list of logic I/Os that should appear in the disturbance recording. If one of the parameters is changed: number of recordings, duration of a recording, number of Pretrig periods, all the recordings already saved will be erased (a warning message is displayed). Changes made in the list of logic I/Os do not affect existing recordings. Click on the "Apply" button. PE50155 Disturbance recordings may be displayed by clicking on the icon. Each recording is identified in the list by the date. Example of disturbance recording configuration screen. Manual disturbance recording: click on the "New recording" button and a new dated item appears in the list. PE50156 Displaying recordings: select one or more disturbance recordings, and click on the "Retrieve" button. This activates the SFT2826 software for display of the disturbance recording files by selecting the "file" menu / "open" command. Example of disturbance recording display screen. 45

48 Use Advanced UMI 2 Fixed or remote advanced UMI b 2 LEDs indicating Sepam operating status: v green "on" LED: device on v red "wrench" LED: device unavailable (initialization phase or detection of internal failure) b 9 parameterizable yellow LEDs, with a standard label (the SFT2841 software may be used to print personalized labels) b 1 connection port for the RS 232 link with the PC (CCA783 cord), the connector is protected by a sliding cover. b a "graphic" LCD display for the display of measurements, parameter/protection settings and alarm and operating messages. The number of lines, size of characters and symbols are in accordance with the screens and language versions. The LCD display is back-lit when the user presses a key. b a 9-key keypad with 2 operating modes: White keys for current operation: 1 Display of measurements. 2 Display of "switchgear, network diagnosis" data. 3 Display of alarm messages. 4 Resetting. 5 Acknowledgment and clearing of alarms. "LED test" key 6 Switching on sequence of all LEDs. Blue keys enabled in parameter and protection setting mode: 7 Access to protection settings. 8 Access to Sepam characteristics. 9 Used to enter the 2 passwords required to change protection and parameter settings The ", r, " (4, 5, 6) keys are used to browse through the menus and to scroll and accept the values displayed. " r DE

49 Use Advanced UMI Access to operating data All of the Sepam operating data may be accessed using the metering, diagnosis, status and protection keys. A first menu is displayed, giving a series of screens for the user to choose from, as shown in the diagram opposite. b the data are split up by category in 4 menus, associated with the following 4 keys: v key: measurements choices: current, voltage, frequency, power, energy v key: switchgear, network and machine diagnosis choices: diagnosis, tripping contexts (x5) v key: general characteristics v key: protection settings b items are chosen from the menus using the cursor keys ( r, ), and selected by pressing the key marked b to go on to the next screen, the user presses again on the key of the measurement category displayed. When a screen includes more than 4 lines, the cursor keys ( r, ) are used to move from one item to another. r r DE50793 Example: measurement loop energizing of Sepam Metering menu "current" choice Metering numerical values I rms Metering bar graphs Overcurrent Average current clear clear 2 I0 bar graph I0Σ bar graph Protection and parameter setting modes There are 3 levels of use: b operator level: provides read access to all the screens and does not require a password b protection setter level: requires the entry of the first password ( key), allows protection setting key) b parameter setter level: requires the entry of the second password ( key). Only parameter setters may modify the passwords. The passwords have 4 digits. MT10808 on I>51 I >> 51 Io > 51N Io >> 51N passwords ext 0 off I on Trip apply cancel clear reset 47

50 Use Advanced UMI White keys for current operation key The "metering" key is used to display the variables measured by Sepam. MT10283 on I>51 I> > 51 Io > 51N Io >> 51N ext 0 off I on Trip 2 I1 = 162A RMS I2 = 161A RMS I3 = 163A RMS clear reset key The "diagnosis" key provides access to switchgear, network and machine diagnosis data and tripping contexts to facilitate fault analysis. MT11117 on I>51 I >> 51 Io > 51N Io >> 51N ext 0 off I on Trip ϕ0 ϕ1 ϕ2 ϕ3 = 0 = -10 = -11 = -10 clear reset key The "alarms" key is used to consult the 16 most recent alarms that have not yet been cleared, in list format or in detail, alarm by alarm. MT10287 on I>51 I >> 51 Io > 51N Io >> 51N ext 0 off I on Trip 0 Io FAULT clear reset 48

51 Use Advanced UMI White keys for current operation reset key The "reset" key resets Sepam (extinction of LEDs and resetting of protection units after the disappearance of faults). The alarm messages are not erased. Sepam resetting must be confirmed. DE50871 on I>51 I >> 51 Io > 51N Io >> 51N 2001 / 10 / 06 PHASE FAULT ext 12:40:50 1A 0 off I on Trip 2 Phase 1 clear reset clear key When an alarm is present on the Sepam display, the "clear" key is used to return to the screen that was present prior to the appearance of the alarm or to a less recent unacknowledged alarm. Sepam is not reset. In the metering or diagnosis or alarm menus, the "clear" key may be used to reset the demand currents, peak demand currents, running hours counter and alarm stack when they are shown on the display. DE50576 on I>51 I >> 51 Io > 51N Io >> 51N ext I1max = 180A I2max = 181A I3max = 180A 0 off I on Trip clear reset key Press the "LED test" key for 5 seconds to start up a LED and display test sequence. When an alarm is present, the "LED test" key is disabled. MT10283 on I>51 I> > 51 Io > 51N Io >> 51N ext 0 off I on Trip I1 = 162A RMS I2 = 161A RMS I3 = 163A RMS clear reset 49

52 Use Advanced UMI Blue keys for parameter and protection setting key The "status" key is used to display Sepam versions and Sepam characteristics. DE50872 on I>51 I >> 51 Io > 51N Io >> 51N ext 0 off I on Trip 2 General settings language setting mode English TMS French 10 I/Is Active group = A clear reset key The "protection" key is used to display the list of protection functions enabled (via the SFT2841) and the "delay" and "threshold" settings of most of the protection functions. DE50873 on I>51 I >> 51 Io > 51N Io >> 51N ext 0 off I on Trip 50/51 1A Trip Curve Threshold Delay = = = inverse 110 A 100 ms clear reset key The "key" key is used to enter the passwords for access to the different modes: b protection setting b parameter setting. and return to "operating" mode (with no passwords). MT10808 on I>51 I >> 51 Io > 51N Io >> 51N passwords ext 0 off I on Trip apply cancel clear reset Nota : for parameter setting of LEDs and output relays, it is necessary to use the SFT2841 software, "control logic" menu. 50

53 Use Advanced UMI Blue keys for parameter and protection setting reset key The key is used to confirm the protection settings, parameter settings, choice of menu and passwords. DE50874 on I>51 I >> 51 Io > 51N Io >> 51N ext 0 off I on Trip 50/51 1A Trip Curve = SIT Threshold = 550 A Delay = 600 ms 2 clear reset clear key When there are no alarms on the Sepam display and the user is in the status, protection or alarm menu, the r key is used to move the cursor upward. DE50525 key When there are no alarms on the Sepam display and the user is in the status, protection or alarm menu, the key is used to move the cursor downward. r MT10814 on I>51 I> > 51 Io > 51N Io >> 51N ext 0 off I on Trip Metering Current Frequency Voltage Power Energy clear reset 51

54 Use Advanced UMI Data entry principles 2 Use of passwords Sepam has two 4-digit passwords: b the first password, symbolized by a key, is used to modify the protection settings b the second password, symbolized by two keys, is used to modify the protection settings and all the general settings (using SFT2841). The 2 factory-set passwords are: 0000 Entry of passwords Press the key to display the next screen: MT10816 passwords apply cancel reset Press the key to position the cursor on the first digit. 0 X X X Scroll the digits using the cursor keys ( r, ) then confirm to go on to the following digit by pressing the reset key. Do not use characters other than numbers 0 to 9 for each of the 4 digits. When the password for your qualification level is entered, press the key to position the cursor on the reset box marked apply. Press the key again to confirm. When Sepam is in protection setting mode, a key appears at the top of the display. When Sepam is in parameter setting mode, two keys appear at the top of the display. Access to the protection setting and parameter setting modes is disabled: b by pressing the key b automatically if no keys are activated for more than 5 minutes. Modification of passwords Only the parameter setting qualification level (2 keys) or the SFT2841 allow modification of the passwords. Passwords are modified in the general settings screen,.key. Loss of passwords If the factory-set passwords have been modified and the latest passwords entered have been irretrievably lost by the user, please contact your local after-sales service representative. r r Entry of parameters and protection settings Principle applicable to all Sepam screens (example of phase overcurrent protection) b enter the password b press the key the number of times necessary to reach the required screen b move the cursor using the key to access the required field (e.g. curve) b press the key to confirm the choice, then select the type of curve using the key reset marked r or and confirm using the key reset b press the key to go to the following fields, until you reach the box marked apply. reset Press the key to confirm the setting. Entry of numerical values (e.g. current threshold value). b move the cursor to the required field using the " r, " keys and confirm the choice by pressing the key. reset b the first digit to be entered is selected; set the value using the r, keys (choice of. 0 9) b press the key to confirm the choice and go on to the following digit. reset The values are entered with 3 significant digits and a decimal point. The units (e.g. A or ka) are chosen using the last digit. b press the key to confirm the entry, then press the key for access to the next field reset b all of the values entered are only effective after the user confirms by selecting the apply box at the bottom of the screen and presses the key. reset r r r r r 52

55 Use Default settings The default settings (or factory settings) are present in Sepam the first time it is used. It is possible to go back to the Sepam default settings at any time by using the "Factory settings" function in the SFT2841 configuration software. These settings are also used to initialize the SFT2841 configuration software setting files. Parameter Hardware configuration Model Identification COM1, COM2 MET148-2 No. 1, 2 MSA141 MES120 No. 1, 2, 3 General characteristics Frequency Incomer/feeder Phase rotation direction Group of settings Remote protection setting enabled Remote control with select before operate (SBO) Integration period Active-energy increment Reactive-energy increment Default value Integrated UMI Sepam xxx Off Off Off Off 50 Hz S80, S81, S82, M81, M87, M88 applications: feeder G82, G87, G88, T81, T82, T87 applications: incomer 1_2_3 Group A Off Off 5 min 0.1 kwh 0.1 kvarh Temperature C Sepam working language English Time synchronization mode None Auxiliary voltage monitoring Off Protection setting password 0000 Parameter setting password 0000 CT-VT sensors Single-line type 1 I - CT rating 5 A I - Number of CTs I1, I2, I3 I Rated current (In) 630 A I - Base current (Ib) 630 A I0 Residual current None I'0 Residual current None I' - CT rating 5 A I' - Number of CTs I1, I2, I3 I' Rated current (I'n) 630 A I' - Base current (I'b) 630 A V number of VTs V1V2V3 V - Rated primary voltage (Unp) 20 kv V - Rated secondary voltage (Uns) 100 V V0 3V sum Vnt - None Particular characteristics Transformer present T87, G88, M88: yes Other applications: no Rated voltage Un1 20 kv Rated voltage Un2 20 kv Rated power 30 MVA Vector shift 0 Rated speed 3000 rpm Zero speed threshold 5 % Pulses per rotation 1 Control logic Switchgear control On, circuit breaker Logic discrimination Off Genset shutdown Off De-excitation Off Load shedding Off Restart Off Logic I/O assignment O1, O3 On, NO, permanent O2, O5 On, NC, permanent O4 Off 2 53

56 Use Default settings 2 Parameter Protection Activity Latching Participation in switchgear control: Default value All protection functions are "off" 21B, 27D, 32P, 32Q, 38/49T, 40, 46, 48/51LR, 49RMS, 50BF, 50/27, 50/51, 50N/51N, 50V/51V, 64REF, 67, 67N, 78PS, 87M, 87T 21B, 32P, 32Q, 37, 38/49T, 40, 46, 48/51LR, 49RMS, 50/27, 50/51, 50N/51N, 50V/51V, 64REF, 67, 67N, 78PS, 87M, 87T Genset shutdown 12, 40, 50/51 (units 6, 7), 50N/51N (units 6, 7), 59N, 64REF, 67, 67N, 87M, 87T De-excitation 12, 40, 50/51 (units 6, 7), 50N/51N (units 6, 7), 59, 59N, 64REF, 67, 67N, 87M, 87T Setting Approximate values consistent with general characteristics by default Matrix LED According to front panel marking Disturbance recording Pick-up All protection functions except for 14, 27R, 38/49T, 48/ 51LR, 49RMS, 50BF, 66 Logic outputs O1: tripping O2: inhibit closing O3: closing O5: watchdog Disturbance recording Activity On Number of recordings 6 Duration of a recording 3 Number of samples per period 12 Number of Pretrig periods 36 54

57 Commissioning Contents Principles and methods 56 Testing and metering equipment required 57 General examination and preliminary actions 58 Checking of parameter and protection settings 59 Checking of phase current and voltage input connection 60 With 3-phase generator 60 With single-phase generator and voltages delivered by 3 VTs 62 With single-phase generator and voltages delivered by 2 VTs 63 Checking of phase current input connection 64 For differential applications 64 Checking of residual current input connection 65 Checking of residual voltage input connection 66 With voltage delivered by 3 VTs in open delta arrangement 66 With voltage delivered by 1 neutral point VT 67 Checking of residual current and residual voltage input connection 68 Checking of phase current input connection 69 LPCT type current sensors 69 Checking of logic input and output connection and optional module connection 70 Validation of the complete protection chain 71 Test sheet 72 Sepam series

58 Commissioning Principles and methods 3 Protection relay testing Protection relays are tested prior to commissioning, with the dual aim of maximizing availability and minimizing the risk of malfunctioning of the assembly being commissioned. The problem consists of defining the consistency of the appropriate tests, keeping in mind that the relay is always involved as the main link in the protection chain. Therefore, protection relays based on electromechanical and static technologies, the performances of which are not totally reproducible, must be systematically submitted to detailed testing, not only to qualify relay commissioning, but also to check that they actually are in good operating order and maintain the required level of performance. The Sepam concept makes it possible to do away with such testing, since: b the use of digital technology guarantees the reproducibility of the performances announced b each of the Sepam functions has undergone full factory-qualification b an internal self-testing system provides continuous information on the state of the electronic components and the integrity of the functions (e.g. automatic tests diagnose the level of component polarization voltages, the continuity of the analog value acquisition chain, non-alteration of RAM memory, absence of settings outside the tolerance range) and thereby guarantees a high level of availability Sepam is therefore ready to operate without requiring any additional qualification testing that concerns it directly. Sepam commissioning tests The preliminary Sepam commissioning tests may be limited to a commissioning check, i.e.: b checking of compliance with BOMs and hardware installation diagrams and rules during a preliminary general check b checking of the compliance of the general settings and protection settings entered with the setting sheets b checking of current or voltage input connection by secondary injection tests b checking of logic input and output connection by simulation of input data and forcing of output status b validation of the complete protection chain (possible customized logical functions included) b checking of the connection of the optional MET148-2 and MSA141 modules. The various checks are described further on. General principles b all the tests should be carried out with the MV cubicle completely isolated and the MV circuit breaker racked out (disconnected and open) b all the tests are to be performed in the operating situation: no wiring or setting changes, even temporary changes to facilitate testing, are allowed. b the SFT2841 parameter setting and operating software is the basic tool for all Sepam users. It is especially useful during Sepam commissioning tests. The tests described in this document are systematically based on the use of that tool. The commissioning tests may be performed without the SFT2841 software for Sepam units with advanced UMIs. Method For each Sepam: b only carry out the checks suited to the hardware configuration and the functions activated (A comprehensive description of all the tests is given further on) b use the test sheet provided to record the results of the commissioning tests. Checking of current and voltage input connections The secondary injection tests to be carried out to check the connection of the current and voltage inputs are described according to: b the type of current and voltage sensors connected to Sepam, in particular for residual current and voltage measurement b the type of injection generator used for the tests: three-phase or single-phase generator. The different possible tests are described further on by: b a detailed test procedure b the connection diagram of the associated test generator. The table below specifies the tests to be carried out according to the type of measurement sensors and type of generator used, and indicates the page on which each test is described. DE50359 For differential applications (2 x 3 CTs), perform the test described on page 64 in addition to the tests for the basic configuration chosen in the chart opposite. Current sensors Voltage sensors Three-phase Single-phase generator generator 3 CTs or 3 LPCTs 3 VTs page 60 page 62 3 CTs or 3 LPCTs 1 or 2 core bal. CTs 3 CTs or 3 LPCTs 3 VTs 3 V0 VTs 3 CTs or 3 LPCTs 1 or 2 core bal. CTs 3 VTs page 60 page 65 3 VTs 3 V0 VTs 3 CTs or 3 LPCTs 2 phase VTs 3 V0 VTs 3 CTs or 3 LPCTs 2 phase VTs 1 or 2 core balance CTs 3 V0 VTs 3 CTs or 3 LPCTs 3 VTs 1 neutral pt VT 3 CTs or 3 LPCTs 1 or 2 core bal. CTs 3 VTs 1 neutral pt VT 3 CTs or 3 LPCTs 2 phase VTs 1 neutral pt VT 3 CTs or 3 LPCTs 1 or 2 core bal. CTs 2 phase VTs 1 neutral pt VT page 60 page 66 page 60 page 68 page 61 page 66 page 61 page 68 page 60 page 67 page 60 pages 65 and 67 page 61 page 67 page 61 pages 65 and 67 page 62 page 65 page 62 page 66 page 62 page 68 page 63 page 66 page 63 page 68 page 62 page 67 page 62 pages 65 and 67 page 63 page 67 page 63 pages 65 and 67 56

59 Commissioning Testing and metering equipment required Generators b dual sinusoidal AC current and voltage generator: v 50 or 60 Hz frequency (according to the country) v current adjustable up to at least 5 A rms v adjustable up to the rated secondary phase-to-phase voltage of the VTs v adjustable relative phase displacement (V, I) v three-phase or single-phase type b DC voltage generator: v adjustable from 48 to 250 V DC, for adaptation to the voltage level of the logic input being tested. Accessories b plug with cord to match the "current" test terminal box installed b plug with cord to match the "voltage" test terminal box installed b electric cord with clamps, wire grip or touch probes. Metering devices (built into the generator or separate) b 1 ammeter, 0 to 5 A rms b 1 voltmeter, 0 to 230 V rms b 1 phasemeter (if phase displacement (V, I) is not identified on the voltage and current generator). Computer equipment b PC with minimal configuration: v MicroSoft Windows 95 / 98 / NT4.0 / 2000 / XP v 133 MHz Pentium processor, v 64 MB of RAM (32 MB with Windows 95 / 98) v 64 MB free on hard disk v CD-ROM drive b SFT2841 software b CCA783 serial connection cord between the PC and Sepam. Documents b complete connection diagram of Sepam and additional modules, with: v phase current input connection to the corresponding CTs via the test terminal box v residual current input connection v phase voltage input connection to the corresponding VTs via the test terminal box v residual voltage input connection to the corresponding VTs via the test terminal box v logic input and output connection v temperature sensor connection v analog output connection b hardware BOMs and installation rules b group of Sepam parameter and protection settings, available in paper format. 3 57

60 Commissioning General examination and preliminary actions 3 Checking to be done prior to energizing Apart from the mechanical state of the equipment, use the diagrams and BOMs provided by the contractor to check: b identification of Sepam and accessories determined by the contractor b correct earthing of Sepam (via terminal 13 of the 20-pin connector E and the functional earthing terminal located on the back of the Sepam unit) b correct connection of auxiliary voltage (terminal 1: positive polarity; terminal 2: negative polarity) b presence of the DPC (detection of plugged connectors) bridge on terminals of the 20-pin connector E. b presence of a residual current measurement core balance CT and/or additional modules connected to Sepam, when applicable b presence of test terminal boxes upstream from the current inputs and voltage inputs b conformity of connections between Sepam terminals and the test terminal boxes. Connections Check that the connections are tightened (with equipment non-energized). The Sepam connectors must be correctly plugged in and locked. Energizing Switch on the auxiliary power supply. Check that Sepam performs the following initialization sequence, which lasts approximately 6 seconds: b green ON and red indicators on b red indicator off b pick-up of "watchdog" contact. The first screen displayed is the phase current measurement screen. Implementation of the SFT2841 software for PC b start up the PC b connect the PC RS 232 serial port to the communication port on the front panel of Sepam using the CCA783 cord b start up the SFT2841 software, by clicking on the related icon b choose to connect to the Sepam to be checked. Identification of Sepam b note the Sepam serial number given on the label stuck to the right side plate of the base unit b note the references defining the type of application indicated on the adhesive label on the Sepam cartridge b note the Sepam type and software version using the SFT2841 software, "Sepam Diagnosis" screen b enter them in the test sheet. 58

61 Commissioning Checking of parameter and protection settings Determination of parameter and protection settings All of the Sepam parameter and protection settings are determined ahead of time by the design department in charge of the application, and should be approved by the customer. It is presumed that the study has been carried out with all the attention necessary, or even consolidated by a network coordination study. All of the Sepam parameter and protection settings should be available at the time of commissioning: b in paper file format (with the SFT2841 software, the parameter and protection setting file for a Sepam may be printed directly) b and, when applicable, in the format of a file to be downloaded into Sepam using the SFT2841 software. Checking of parameters and protection settings Check to be made when the Sepam parameter and protection settings have not been entered or downloaded during commissioning testing, to confirm the conformity of the parameter and protection settings entered with the values determined during the study. The aim of this check is not to confirm the relevance of the parameter and protection settings. b go through all the parameter and protection setting screens in the SFT2841 software, in the order proposed in guided mode b for each screen, compare the values entered in the Sepam with the values recorded in the parameter and protection setting file b correct any parameter and protection settings that have not been entered correctly, proceeding as indicated in the SFT2841 section of the Use chapter of this manual. Conclusion Once the checking has been done and proven to be conclusive, as of that phase, the parameter and protection settings should not be changed any further and are considered to be final. In order to be conclusive, the tests which follow must be performed with these parameter and protection settings; no temporary modification of any of the values entered, with the aim of facilitating a test, is permissible. 3 59

62 Commissioning Checking of phase current and voltage input connection With 3-phase generator Procedure Connect the 3-phase voltage and current generator to the corresponding test terminal boxes, using the plugs provided, according to the appropriate diagram in terms of the number of VTs connected to Sepam. Block diagram with 3 VTs connected to Sepam DE

63 Commissioning Checking of phase current and voltage input connection With 3-phase generator Block diagram with 2 VTs connected to Sepam DE b turn the generator on b apply the 3 generator voltages V1-N, V2-N and V3-N, balanced and set to the rated secondary phase-to-neutral voltage of the VTs (i.e. Vns = Uns/3) b inject the 3 generator currents I1, I2 and I3, balanced and set to the rated secondary current of the CTs (i.e. 1 A or 5 A) and in phase with the voltages applied (i.e. generator phase displacement: α1(v1-n, I1) = α2(v2-n, I2) = α3(v3-n, I3) = 0 ) b use the SFT2841 software to check the following: v the value indicated for each of the phase currents I1, I2 and I3 is approximately equal to the rated primary current of the CTs v the value indicated for each of the phase-to-neutral voltages V1, V2 and V3 is approximately equal to the rated primary phase-to-neutral voltage of the VT (Vnp = Unp/3) v the value indicated for each phase displacement ϕ1(v1, I1), ϕ2(v2, I2) and ϕ3(v3, I3) between currents I1, I2 or I3 and voltages V1, V2 or V3 respectively is approximately equal to 0 b turn the generator off. 61

64 Commissioning Checking of phase current and voltage input connection With single-phase generator and voltages delivered by 3 VTs Procedure Connect the single-phase voltage and current generator to the corresponding test terminal boxes, using the plugs provided, according to the block diagram below. Block diagram DE b turn the generator on b apply the generator V-N voltage set to the rated secondary phase-to-neutral voltage of the VTs (i.e. Vns = Uns/3) between Sepam s phase 1 voltage input terminals (via the test box) b inject the generator I current, set to the rated secondary current of the CTs (i.e. 1 A or 5 A) and in phase vith the V-N voltage applied (i.e. generator phase displacement α(v-n, I) = 0 ) to Sepam s phase 1 current input (via the text box) b use the SFT2841 software to check the following: v the value indicated for I1 phase current is approximately equal to the rated primary current of the CT v the value indicated for V1 phase-to-neutral voltage is approximately equal to the rated primary phase-to-neutral voltage of the VT (Vnp = Unp/3) v the value indicated for the phase displacement ϕ1(v1, I1) between the I1 current and V1 voltage is approximately equal to 0 b proceed in the same way by circular permutation with the phase 2 and 3 voltages and currents, to check the I2, V2, ϕ2(v2, I2) and I3, V3, ϕ3(v3, I3) values b turn the generator off. 62

65 Commissioning Checking of phase current and voltage input connection With single-phase generator and voltages delivered by 2 VTs Description Check to be carried out when the voltages are supplied by a 2 VT assembly, with the VT primary circuits connected between phases of the distributed voltage, which means that the residual voltage is obtained outside Sepam (by 3 VTs connected via their secondary circuits in an open delta arrangement) or, when applicable, is not used for the protection function. Procedure Connect the single-phase voltage and current generator to the corresponding test terminal boxes, using the plugs provided, according to the block diagram below. Block diagram DE b turn the generator on b apply (via the test box) the voltage delivered at the V- N terminals of the generator, set to 3/2 times the rated secondary phase-to-phase voltage of the VTs (i.e. 3 Uns/2) between terminals 1-2 of Sepam s voltage inputs b inject the generator I current, set to the rated secondary current of the CTs (i.e. 1 A or 5 A) and in phase with the V-N voltage applied (i.e. generator phase displacement α(v- N, I) = 0 ) to Sepam s phase 1 current input (via the test box) b use the SFT2841 software to check the following: v the value indicated for I1 phase current is approximately equal to the rated primary current of the CT (Inp) v the value indicated for V1 phase-to-neutral voltage is approximately equal to the rated primary phase-toneutral voltage of the VT (Vnp = Unp/3) v the value indicated for the phase displacement ϕ1(v1, I1) between the I1 current and V1 voltage is approximately equal to 0 b proceed in the same way to check the I2, V2, ϕ2(v2, I2) values: v apply the generator V-N voltage set to 3Uns/2 in parallel between terminals 1-2 and 4-2 of Sepam s voltage inputs (via the test box) v inject an I current set to 1 A or 5 A and in phase opposition with the V-N voltage (i.e. α(v-n, I) = 180 ) to Sepam s phase 2 current input (via the test box) v obtain I2 Inp, V2 Vnp = Unp/3 and ϕ2 0. In the absence of residual voltage, V3 = 0, U32 = 3Unp/2 b check the I3, V3, ϕ3(v3, I3) values as well: v apply the generator V-N voltage set to 3Uns/2 between terminals 4-2 of Sepam s voltage inputs (via the test box) v inject a current equal to 1 A or 5 A and in phase with the V-N voltage (i.e. α(v-n, I) = 0 ) to Sepam s phase 3 current input (via the test box) v obtain I3 Inp, V3 Vnp = Unp/3 and ϕ3 0. In the absence of residual voltage, V3 = 0, U32 = 3Unp/2 b turn the generator off. 63

66 Commissioning Checking of phase current input connection For differential applications Description Check to be carried out for differential applications (machine, transformer or transformer-machine unit). This test is carried out along with checking of the phase current and phase voltage input wiring. The purpose is to check the wiring of the second Sepam current input. Procedure Connect the generator current terminals to the corresponding current test terminal boxes using the plugs provided, according to the block diagram below Block diagram DE DE50359 Should the secondary circuits of the CTs connected to each of the Sepam current inputs not have the same ratings (1 and 5 A or 5 and 1 A), set the injection to the lowest secondary rating. The value indicated for the phase currents (I1, I2, I3) or (I 1, I 2, I 3), as the case may be, is then equal to the CT rated primary current divided by 5 (In/5). b turn the generator on b inject, in series, into the phase 1 current input terminals of each Sepam connector B1, B2 connected in opposition (via the test boxes, according to the diagram above), current I from the generator, set to match the CT rated secondary current (1 A or 5 A) b use the SFT2841 software to check the following: v the value indicated for phase current I1 is approximately equal to the rated primary current of the CT (In) wired to the Sepam B1 connector v the value indicated for phase current I 1 is approximately equal to the rated primary current of the CT (I n) wired to the Sepam B2 connector v the value indicated for the phase displacement θ(i, I ) between currents I1 and I 1 is equal to 0 b check the I2 and I 2, I3 and I 3 and θ(i, I ) values as well the values between I2-I 2 and I3-I 3 after transferring the injection plugs to the phase 2 current and then phase 3 current input terminals of each of the Sepam connectors b turn the generator off. 64

67 Commissioning Checking of residual current input connection Description Check to be carried out when the residual current is measured by a specific sensor such as: b CSH120 or CSH200 core balance CT b CSH30 interposing ring CT (whether it is installed on the secondary circuit of a single 1 A or 5 A CT which encompasses the 3 phases, or on the neutral connection of the three 1 A or 5 A phase CTs) b other core balance CT connected to an ACE990 interface, b and when the residual voltage is calculated in Sepam or cannot be calculated (e.g.: assembly with 2 VTs connected via their primary circuits) and is therefore not available for the protection function. Procedure b connect according to the diagram below: v a wire between the generator current terminals to inject current into the primary circuit of the core balance CT or CT, with the wire passing through the core balance CT or CT in the P1-P2 direction, with P1 the busbar end and P2 the cable end v when applicable, the generator voltage terminals to the voltage test terminal box, so as to only supply Sepam s phase 1 voltage input and therefore obtain a residual voltage V0 = V1. Block diagram Note: the number of CTs connected to the Sepam current connector phase inputs is given as an example and is not used for the test. DE DE50359 Sepam series 80 is equipped with 2 independent residual current inputs which may be connected to a core balance CT installed on the cables, tank earthing cable or neutral point of a transformer, or on the earthing cable of a motor or generator. In some cases, reading of the ϕ0 or ϕ 0 angle is impossible due to the position of the core balance CT (e.g. transformer neutral point or tank earthing cable) or because only one of the two I0 or V0 measurements is necessary or possible. When this is the case, simply check the measured residual current value I0 or I 0. b turn the generator on b when applicable, apply a V-N voltage set to the rated secondary phase-to-neutral voltage of the VT (i.e. Vns = Uns/3) b inject an I current set to 5 A, and when applicable in phase with the V-N voltage applied (i.e. generator phase displacement α(v-n, I) = 0 ) b use the SFT2841 software to check the following: v the value indicated for the measured I0 residual current is approximately equal to 5 A v when applicable, the value indicated for calculated V0 residual voltage is approximately equal to the rated primary phase-to-neutral voltage of the VTs (i.e. Vnp = Unp/3) v when applicable, the value indicated for the phase displacement ϕ0(v0, I0) between the I0 current and V0 voltage is approximately equal to 0 b use the same procedure if the I 0 input is connected. When this is the case, the phase displacement angle to be checked is ϕ 0(V0, I 0), between the I 0 current and V0 voltage b turn the generator off. 65

68 Commissioning Checking of residual voltage input connection With voltage delivered by 3 VTs in open delta arrangement Description Check to be carried out when the residual voltage is delivered by 3 VTs on the secondary circuits connected in an open delta arrangement, and when the residual current is calculated in Sepam or cannot be calculated (e.g.: assembly with 2 CTs) and is therefore not available for the protection function. Procedure b connect according to the diagram below: v the generator voltage terminals to the voltage test terminal box, so as to only supply Sepam s residual voltage input v when applicable, the generator current terminals to the current test terminal box, so as to only supply Sepam s phase 1 current input, and therefore obtain a residual current I0Σ = I1. Block diagram Note: the number of VTs connected to the Sepam voltage connector phase inputs is given as an example and is not used for the test. DE b turn the generator on b apply a V-N voltage set to the rated secondary voltage of the VTs installed in an open delta arrangement (i.e., depending on the case, Uns/3 or Uns/3) b when applicable, inject an I current set to the rated secondary current of the CTs (i.e. 1 A or 5 A) and in phase with the voltage applied (i.e. generator phase displacement α(v-n, I) = 0 ) b use the SFT2841 software to check the following: v the value indicated for the measured V0 residual voltage is approximately equal to the rated primary phase-to-neutral voltage of the VTs (i.e. Vnp = Unp/3) v when applicable, the value indicated for the calculated I0Σ residual current is approximately equal to the rated primary current of the CTs v when applicable, the value indicated for the phase displacement ϕ0σ (V0, I0Σ) between the I0Σ current and V0 voltage is approximately equal to 0 b turn the generator off. 66

69 Commissioning Checking of residual voltage input connection With voltage delivered by 1 neutral point VT Description Check to be carried out when the Sepam residual voltage input is connected to 1 VT installed on the neutral point of a motor or generator (in which case the VT is a power transformer). Procedure Connect the generator voltage terminals to the voltage test terminal box, so as to only supply Sepam s residual voltage input Block diagram Note: the number of CTs/VTs connected to the Sepam current/voltage connector phase inputs is given as an example and is not used for the test. DE b turn the generator on b apply a V-N voltage set to the rated secondary voltage of the neutral pointt VT (i.e. Vnts) b use the SFT2841 software to check that the measured neutral point voltage Vnt is approximately equal to the rated primary phase-to-neutral voltage of the VTs (i.e. Vnts) b turn the generator off. 67

70 Commissioning Checking of residual current and residual voltage input connection Description Check to be carried out when the residual voltage is delivered by 3 VTs on the secondary circuits connected in an open delta arrangement and when the residual current is obtained by a specific sensor such as: b CSH120 or CSH200 core balance CT b CSH30 interposing ring CT (whether it is installed on the secondary circuit of a single 1 A or 5 A CT which encompasses the 3 phases, or on the neutral connection of the three 1 A or 5 A phase CTs) b other core balance CT connected to an ACE990 interface. Procedure b connect according to the diagram below: v the generator voltage terminals to the voltage test terminal box using the plug provided, v a wire between the generator current terminals to inject current into the primary circuit of the core balance CT or CT, with the wire passing through the core balance CT or CT in the P1-P2 direction, with P1 the busbar end and P2 the cable end. Block diagram Note: the number of CTs/VTs connected to the Sepam current/voltage connector phase inputs is given as an example and is not used for the test. 3 DE50714 DE50359 Sepam series 80 is equipped with 2 independent residual current inputs which may be connected to a core balance CT installed on the cables, tank earthing cable or neutral point of a transformer, or on the earthing cable of a motor or generator. In some cases, reading of the ϕ0 or ϕ 0 angle is impossible due to the position of the core balance CT (e.g.: transformer tank earthing cable or neutral point) or because only one of the two I0 or V0 measurements is necessary or possible. When this is the case, simply check the measured residual current value I0 or I 0. b turn the generator on b apply a V-N voltage set to the rated secondary voltage of the VTs connected in an open delta arrangement (i.e. Uns/3 or Uns/3) b inject an I current set to 5 A, and in phase with the voltage applied (i.e. generator phase displacement α(v-n, I) = 0 ) b use the SFT2841 software to check the following: v the value indicated for the measured I0 residual current is approximately equal to 5 A v the value indicated for the measured V0 residual voltage is approximately equal to the rated primary phase-to-neutral voltage of the VTs (i.e. Vnp = Unp/3) v the value indicated for the phase displacement ϕ0(v0, I0) between the I0 current and V0 voltage is approximatelyequal to 0 b use the same procedure if the I 0 input is connected. When this is the case, the phase displacement angle to be checked is ϕ 0(V0, I 0), between the I 0 current and V0 voltage b turn the generator off. 68

71 Commissioning Checking of phase current input connection LPCT type current sensors Reminder b The 3 LPCT current sensors are connected via an RJ45 plug to the CCA671 connector which is to be mounted on the rear panel of Sepam, identified as. B1 and/ or B2 b The rated primary current In measured by the LPCT sensors is to be entered as a Sepam general setting and configured by microswitches on the CCA671 connector. Note: the connection of only one or two LPCT sensors is not allowed and causes Sepam to go into the fail-safe position. Possible combinations of types of sensors The combinations possible depend directly on the type of Sepam application. b Sepam units without ANSI 87T or 87M differential protection functions measure 2 or 3 phase currents by means of sensors wired to connector B1 b Sepam M87 and G87 units with ANSI 87M machine differential protection measure 2 x 3 phase currents: v 3 CTs or 3 LPCTs at the circuit breaker end wired to connector B1 v 3 CTs or 3 LPCTs wired to connector B2 b Sepam T87, M88 and G88 units with ANSI 87T transformer differential protection measure 2 x 3 phase currents by means of 2 sets of 3 current transformers: v 3 CTs at the circuit breaker end wired to connector B1 v 3 CTs wired to connector B2. 3 Sensors connected To connector B1 To connector B2 Sepam without ANSI 87M or 87T Sepam with ANSI 87M Sepam with ANSI 87T 2 CTs or 3 CTs 3 CTs to CCA630 3 CTs to CCA630 to CCA630 or 3 LPCTs to CCA671 or 3 LPCTs to CCA671 3 CTs to CCA630 3 CTs to CCA630 or 3 LPCTs to CCA671 Procedure The tests to be carried out to check phase current input connections are the same whether the phase currents are measured by CTs or LPCT sensors. Only the Sepam current input connection procedure and current injection values change. To test current inputs connected to LPCT sensors with a standard injection box, the ACE917 injection adapter is required. The ACE917 adapter is inserted between: b the standard injection box b the LPCT test plug: v integrated in the Sepam CCA671 connector v or transferred by means of the CCA613 accessory. The ACE917 injection adapter should be set according to the currents selected on the CCA671 connector using the 8-position thumbwheel switch which gives the 8 possible microswitch settings. The injection value depends on the rated primary current selected on the CCA671 connector and entered in the Sepam general settings, i.e.: b 1 A for the following values (in Amps): 25, 50, 100, 133, 200, 320, 400, 630 b 5 A for the following values (in Amps): 125, 250, 500, 666, 1000, 1600, 2000,

72 Commissioning Checking of logic input and output connection and optional module connection PE50146 Checking of logic input connection Procedure Proceed as follows for each input: b if the input supply voltage is present, use an electric cord to short-circuit the contact that delivers logic data to the input b if the input supply voltage is not present, apply a voltage supplied by the DC voltage generator to the terminal of the contact linked to the chosen input, being sure to comply with the suitable polarity and level b observe the change of status of the input using the SFT2841 software, in the "Input, output, indicator status" screen b at the end of the test, if necessary, press the SFT2841 Reset key to clear all messages and deactivate all outputs. 3 PE50147 SFT2841: input, output, indicator status. Checking of logic output connection Procedure Check carried out using the "Output relay test" function, activated via the SFT2841 software, in the "Sepam Diagnosis" screen. Only output O5, when used for the watchdog, can be tested. This function requires prior entry of the "Parameter setting" password. b activate each output relay using the buttons in the SFT2841 software b the activated output relay changes status over a period of 5 seconds b observe the change of status of the output relay through the operation of the related switchgear (if it is ready to operate and is powered), or connect a voltmeter to the terminals of the output contact (the voltage cancels itself out when the contact closes) b at the end of the test, press the SFT2841 Reset key to clear all messages and deactivate all outputs. SFT2841: output relay test. Checking of optional module connection Checking of RTD inputs to the MET148-2 module The temperature monitoring function provided by Sepam T81, T82, T87, M81, M87, M88, G82, G87, G88 units checks the connection of each RTD that is configured. An "RTD FAULT" alarm is generated whenever one of the RTDs is detected as being short-circuted or disconnected (absent). To identify the faulty RTD or RTDs: b display the temperature values measured by Sepam using the SFT2841 software b check the consistency of the temperatures measured: v the temperature displayed is "****" if the RTD is short-circuited (T < -35 C) v the temperature displayed is "-****" if the RTD is disconnected (T > 205 C). Checking of analog output connection to the MSA141 module b identify the measurement associated by parameter setting to the analog output using the SFT2841 software b simulate, if necessary, the measurement linked to the analog output by injection b check the consistency between the value measured by Sepam and the indication given by the device connected to the analog output. 70